重價質分選 的英文怎麼說

中文拼音 [zhòngjiàzhífēnxuǎn]
重價質分選 英文
densemedium separation
  • 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
  • 價 : 名詞1. （價格） price 2. （價值） value 3. [化學] （化合價） valence
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. The thesis, somehow, is a summary, which expounds the main contents of traditional portfolio theory ( tpt ) and mpt, also gives a comparison between tpt and mpt ; analyses two aspects of markowitz theory, one is the effects of risk disperses and the demonstration, the other is how to make an optimal portfolio strategy ; researches into capital assets pricing model ( capm ), factor model ( fm ) and arbitrage pricing theory ( apt ) respectively in three parts ; studies another two parts, one is the premise of mpt, which is the efficient market hypothesis ( emh ), the other analyses the behavior finance theory ( bft ) produced in the background of challenging and querying to emt and capm. the thesis finally discusses the researching and applying prospects of mpt in china

    論文對現代資產組合理論與傳統資產組合理論分別進行了分析，並對兩者進行了比較研究，對馬克維茨的均值? ?方差理論從資產組合風險分散效應和最優資產組合選擇兩方面進行了重點分析，對資本資產定價模型、因素模型、套利定價理論進行了一定深度的分析和研究，對現代資產組合理論的前提假設? ?有效市場理論及在對有效市場理論和資本資產定價模型形成挑戰和質疑背景下提出的行為金融理論進行了論述，論文最後分析了現代資產組合理論在我國的研究及其應用的廣闊前景。
  3. Directed by new theories and approaches of sedimentology, diagenesis and reservoir evaluation, focused on marine clastic reservoir of donghe sandstone member, in tarim basin, strata and depositional system of donghe sandstone member are classified ; typical depositional facies types, depositional model and horizontal distribution have been studied through depositional facies analysis of 17 single wells, combined with seismic data. major diagenetic events, stages and " four history " collaboration have been systematically analysesed, furthermore, the relation between reservoir diagenesis and porosity evolution has been built ; thorough studies on reservoir lithology, physical property and pore structure, reservoir development related to depositional envoironment, diagenesis and tectonic has been discussed ; reservoir has been evaluated and predicted by five influential parameters drawn from the results of the study on depositional facies, diagenesis and reservoir characteristic. in the end, favourable reservoir body distribution has been pointed out

    本論文以沉積學、沉積巖石學、沉積成巖作用與儲層地質學、儲層評價技術的新理論新方法為指導，以塔里木盆地巴楚組東河砂巖段海相碎屑巖儲層為主要研究對象，通過17口典型井的單井地層沉積相分析和成巖作用分析，結合地震資料，對東河砂巖段地層和沉積體系進行了詳細劃分，研究了東河砂巖段分佈區的典型沉積相類型、沉積模式及其平面展布特徵；系統分析了東河砂巖段碎屑巖儲層的主要成巖事件、成巖期次及其四史配置關系，指出了儲層成巖與孔隙演化的關系；深入研究了東河砂巖段碎屑巖儲層的巖石學特徵、物性分佈、孔隙結構等特徵，著重討論研究了沉積環境、成巖作用和構造作用對儲層發育的影響；運用「權重」評價法結合地層沉積相、成巖演化和儲層特徵研究的結果，選取了五個對儲層發育有重要影響的參數對儲層進行了整體的評價和預測，指出了塔里木盆地東河砂巖段儲層有利儲集體的分佈狀況。
  4. In this paper, taking one of the special processes - chromic acids anodizing for example, such administration methods as the key points control and the quality performance administration system for surface treatment process have been setup by process analysis and key points seeking. as for the complicacy of the quality control on metallurgical special processes and the huge statistic data, the quality information system of surface treatment have been established on the bases of computer database. this paper brings out the systematic evaluation way to setup reception test items by taking the reception test results as evaluation basis and sampling statistics as rules

    本文以鉻酸陽極氧化表面處理工藝為研究對象，通過工藝技術分析、尋找關鍵特性、建立對關鍵特性的控制等工作，研究建立了表面處理工藝動態質量管理系統；針對冶金特種工藝質量控制的復雜性及統計數據量大等特點，建立了以計算機數據庫管理為基礎的表面處理信息及處理系統；為解決冶金特種工藝原材料入廠復驗任務重的困難，建立了以原材料入廠復驗的試驗結果為評價基礎，以抽樣統計方法為依據的原材料入廠復驗項目優選系統等。
  5. This paper, in the light of the special geological environment and actual project situation of the three gorges reservoir area, puts forward a comprehensive analysis and evaluation system suitable for the stability analysis of the bank landslide of the three gorges reservoir area under the premise of thorough consideration of the water influence on the stability of the bank landslide, and obtains the following achievements in several aspects that have the practical application significance and certain scientific research value : ( 1 ) it is discovered that the water activity is the primary factor of the formation of the new landslide and the revival of the ancient landslide. on the one hand, the rising underwater level reduces the actual stress of landslide ; on the other hand, the long time soaking of the underwater reduces the mechanics intensity of the landslide and the slide belt, both of which reduce directly the landslide stability ; ( 2 ) in view of the special condition of the three gorges reservoir area, this paper analyzes systematically the forces acted on the landslide of the three gorges reservoir area and the force varieties acted on the divided landslide when the water level changes between 175 meters and 145 meters. thus it is more scientific and comprehensive for the analysis of the forces acted on the landslide ; ( 3 ) this paper summaries systematically 10 kinds of typical computation projects by organic combinations of different kinds of situations in the dry season ( nature statue ), rainy season ( rainstorm or rains for a long time condition ), with 175m water level in the reservoir, during the earthquake, with the water level of the reservoir adjusted from 175m to 145m and so on, and produces

    本文針對長江三峽庫區特殊的地質環境與工程實際情況，在充分考慮水對庫岸滑體穩定性影響的前提下，提出了一個適用於長江三峽庫岸滑坡體穩定性分析的綜合分析評價體系，並取得了如下幾個方面具有工程實際意義和一定科學研究價值的研究成果： （ 1 ）研究結果發現，水的活動是新滑坡形成或古滑坡復活的主要因素，一方面是由於地下水位升高降低了滑坡體的有效應力，另一方面是由於地下水的長期浸泡降低滑體及滑帶的力學強度，這兩方面的因素均將直接降低滑坡的穩定性； （ 2 ）針對三峽庫區的特殊條件，系統分析了作用於三峽庫區滑坡體上的力系和庫水位在175m與145m間變化時滑體條塊的受力變化，從而使對作用於滑坡體上的力系分析更科學、更全面； （ 3 ）通過對滑體處于旱季（天然狀態） 、雨季（暴雨或長期降雨狀態） 、 175m庫水位、地震以及庫水位由175m調節下降至145m等各種不同情況的有機組合，本文系統地歸納總結出了10種典型計算工況，並具體給出了相應的作用荷載的計算方法，使在庫區岸坡滑體穩定性分析評價時對計算工況選擇及其作用荷載的計算更具規范性； （ 4 ）具體運用c + + builder開發了關于滑坡體穩定性綜合分析評價系統，使對滑坡體穩定性分析計算更方便、更準確； （ 5 ）將上述滑坡體穩定性綜合分析評價系統應用於重慶市豐都縣名山滑坡穩定性分析的具體事例中，分析結果表明，本文所提出滑坡體穩定性綜合分析評價方法對三峽庫區的滑坡穩定性分析是實用可行的。
  6. The moral predicament during the transformational period of the society is prominently manifested in the loss of the standard for moral evaluation, the confusion of value - orientation, the overflow of immoralism, the weakening of morality - regulating mechanism of the society, and the distortion of moral education, etc. these predicaments seriously hinder the development of socialist material and spiritual civilizations, and its appearance is inseperable from the specific social and historical circumstances of the transformational period ; meanwhile, the negative effect resulting from the initially established market economy, cultural changes, cultural mingling and conflict, and the choice of moral subject all contribute to the moral crisis of china presently

    社會轉型期道德困境突出表現為道德評價失范、價值取向紊亂、非道德主義泛濫、社會道德控制機制弱化和道德教育扭曲變形等幾個方面。這些困境，嚴重妨礙著社會主義物質文明和精神文明的發展，它的產生，和轉型期這個特定的社會歷史條件是分不開的；同時，我國初步建立市場經濟所帶來的負效應，文化的變遷、文化的交融與沖突及道德主體自身的選擇也是導致當前中國社會道德危機的重要原因。
  7. At the same time the study analyse the structural system of the index and it ' s weight with the ahp, and choose soil quality, soil thickness, the content of organic matter, terrain, elevation and the ration of irrigated guarantee as gradation index and choose soil quality, soil thickness, the content of organic matter, terrain, elevation, the ration of irrigated guarantee, the condition of traffic, the distance from the central city, the scatter degree of field, the neat degree of field, loss of water and erosion of soil and land contamination as classification index. at the same time the study emphasize the effect of the condition of ecological condition and environmental contamination

    採用層次分析法對該區域農用地分等定級的指標體系及其權重進行了研究，選擇表層質地、土層厚度、有機質含量、地形、海拔、灌溉保證率等6項指標參與分等評價，選取表層質地、土層厚度、有機質含量、地形、海拔、灌溉保證率、對外交通狀況、距市中心距離、田間道路狀況、田塊分散度、地面平整度、水土流失、土地污染等13個因子分指標區進行定級評價，強調了生態條件及其環境污染狀況在農用地分等定級中的作用。
  8. Moreover, this paper discusses the feasibility of option pricing theory by adopting cases. on the one hand, it admits this method plays a key role in the realization of " debt - in - lieu - of - equity " of state - owned enterprises and appraising the value of potential earning - capacity ; on the other hand, it illustrates the application of option pricing theory in appraisal is still immature. for it can not meet the prerequisite of the theory ; its result will not be generally accepted and the quality of appraisal staff are relatively lower, this method is not applicable to business valuation aiming at equity alteration. thus it should not be regarded as a brand - new appraisal method to be promot ed in the short run. in the finial the thesis forms its conclusion on method application of superseding cost method gradually. generalizing the use of income method and developing the sense of using option pricing method

    由於成本法所固有的局限性，無法評估出資產組配成具有獲利能力的整體資產的創造性價值，因此注重企業獲利能力的收益法已成為轉軌時期中國評估業的現實選擇，並進一步對收益法的起源、方法特點和適用性進行了深入的分析；運用理性分析與案例分析相結合的方法對收益法發展的新階段? ?期權定價法應用於企業價值評估的可行性進行了研究，肯定了這一方法對國企實現「債轉股」和評估高新技術企業潛在獲利能力價值的重大意義，同時對此方法應用於企業價值評估不滿足前提條件、評估結果的可接受性、及評估人員素質等方面說明了這一方法在資產評估領域的應用尚不成熟，尤其不適用於產權變動為目的的企業價值評估，因而短期內不宜作為一種全新的評估方法推廣。
  9. On the basis of the study of the theory and appraise method on land use in the small towns from home and abroad, this paper at first conducts a deep study on the development and role of the small towns, indicating that its development has sawn an uneven development phrase and becomes a carrier of the enterprises, a pool of surplus laborers, a hub of material exchanges between the rural and urban areas, a base of spiritual civilization, an important way to achieve urbanization. second, it conducts a study on the situation and features and the problems the land use, indicating that the efficiency of the land use is low, which has a direct influence on the development of agriculture and the role of the small towns. and the study of the demand of the land indicates the shortage of land is serious, and the small town must rationally use the land and increases its intensive role and the economical efficiency to meet the demand

    在分析國內外已有關于小城鎮土地利用的理論與評價方法的基礎上，首先對小城鎮在我國的發展、地位和作用進行了深入的分析，判明我國小城鎮發展經歷了一個曲折向上的發展階段，已成為鄉鎮企業的載體，農村剩餘勞動力的蓄水池，城鄉物資交流的樞紐，農村精神文明的基地，是我國城市化的重要途徑；其次，對小城鎮土地資源利用現狀和特徵進行了探討，並對發展小城鎮建設導致的土地利用問題進行了剖析，表明目前我國大多數小城鎮土地效益和規模效益低下，佔用耕地過多，直接影響農業的發展，影響小城鎮的地位和作用；通過小城鎮土地供需分析研究表明，我國土地短缺十分嚴峻，小城鎮土地需求缺口較大，小城鎮必須合理利用現有土地，增強集約功能和土地經濟效益，從而緩解需求壓力；最後，論文通過運用特爾菲法，描述統計分析法、多元統計分析（主成分分析）法和系統分析法中的層次分析法（ ahp ）等一系列方法，結合定性和定量兩方面，從土地質量、土地資源數量與結構、土地經濟效益、環境效益、社會效益等五個方面進行分析，篩選、建立了土地資源利用評價指標體系，在因子評價的基礎上，建立了土地利用綜合評價模型，並給出了評價過程和方法。
  10. Including actuality evaluation, environmental identification analysis, dynamic harmonious analysis, dynamic simulation analysis and policy decision putting into optimization scheme. the results showed as follows. 1, in the current agricultural production structure, output value of animal husbandry and crop planting occupy 93. 4 % of agricultural total output value, and forestry and fishery do not get fully reasonably develop ; the wild economic vegetables and fruits resources and water resources etc, are the superiority environment factors of agriculture development of this area, and the slope farmland and service system etc, are limited environment factors, and the science - technology and labor quality etc, are potential environment factors ; there exists some problems in the agricultural production system, for example, single productive constitution do n ' t correspond with varieties of resources, rich plant resources exploitation scarcity and economical crop development lag

    本文選擇四川盆周山區這一特定地貌區域作為研究對象，以滎經縣為代表研究了該區農業生產結構的優化調整，包括農業生產系統的現有結構評價、環境辨識分析、動態協調分析、動態模擬評價分析和實施優化方案的決策建議，結果表明： 1 、滎經現有結構為以畜牧業和種植業並重的豬糧為主的農業生產結構，二者產值占農業總產值的93 . 4 ，林業、漁業未得到充分合理發展；野生經濟菜果資源、水資源等為該區農業發展的優勢環境因子，坡耕地、服務體系等為限制環境因子，科技、勞動力素質等為潛力環境因子；同時該區農業生產系統存在著生產結構的單一性與資源多樣性的利用不協調、豐富的植物資源開發不足、經濟作物發展滯后等問題。
  11. This paper predicts the potential of residual resources and unproved reserves in liaohe oilfield, analyzes the exploration degree and direction, evaluates and optimizes each zone, defines 7 key zones for recent exploration in the oilfield, and demonstrates the geological conditions, resource potential and exploration targets in each key zone

    運用多種方法對遼河油田剩餘資源潛力及近期待探明儲量進行了預測，並從勘探程度和勘探方向分析入手，對各個區帶進行了深入評價和優選，明確了近期遼河油區的7個重點勘探區帶，並對各重點區帶的石油地質條件、資源潛力、勘探目標進行了論證分析，為近期油氣勘探指明了方向。
  12. Chapter three author aimming at the blank of study on the inrollment policy of the higher education for minorities tries to probe theoretically into it from the perspective of the cause of minority student achieveinent higher educational function and educational policy, and to define the essence principle and foundadion of this policy, firstly, auther wants to show that the root to implementing this policy bases on minority history earth instance and cultural speciality by analyzing the cause of minority students low achievement, secondly, by the perspective perspective of higher educational function, author tries to show the important role of higher education to socialize minority students in case they are peripheried, to inherit and improve minority culture, in order to define that this policy is an important political mechanism to safeguard minority " s educational right and educational equality, thirdly, there are two points to be showed by discussing with the perspective of educational policy : the inrollment policy of the higher education for minorities is complexity and it is restricted and influenced easily by correlative mechanism because it involves virtuely in educational problem ethical problem and policy problem, on the other hand, the inrollment policy of the higher education for minorities don " t violate the principle of individual equality, instead, it carries out certain policy for some groups basing on the principle of the individual equality

    一、通過對少數民族學生低學業成就的歸因分析，論述少數民族高等教育招生政策實施依據是少數民族歷史發展、現實狀況和文化特殊性。二、通過高等教育功能視角的探討，論述高等教育對少數民族學生的進一步社會化，避免少數民族個體被邊緣化的意義，以及高等教育對少數民族繼承、發展民族文化的意義，明確少數民族高等教育招生政策是保障少數民族高等教育權利、保證教育公平的一項重要的「政治機制」 。三、通過教育政策視角的探討，主要有兩方面內容，一是由教育政策的特點，論述少數民族高等教育招生政策實質上是集教育問題、民族問題和政策問題於一身，這使它的運行具有復雜性，它更易受其它相關機制的制約和影響;二是通過教育政策價值取向的探討，論述少數民族高等教育招生政策雖以一定群體為實施的對象，但並不違背個體平等原則，它是立足於個體平等的基礎上，依據能力選拔的原則，針對群體差異客觀存在的現實，對一定群體實施的一定「優惠政策」 ，以保證處於弱勢地位群體的權利，從而真正實現個體的平等。
  13. This paper, through the research on the implementing of gaobazhou water conservancy project, demonstrated that the project is technical feasible, economic reasonable, and is conform to the state macro policy in external environment. described the full - aspect management on the design process of gaobazhou water conservancy project, fully demonstrated that the selection of design scheme and the design quality is directly related to the investment, quality and progress control of the project ; described the full - aspect management on the construction process of gaobazhou water conservancy project, discussed the management procedure and manner of supervisor in the construction process, how does the contractor to complete construction task scientifically and reasonably by following the certain supervision procedure based on the contract ; described the management on the procurement of gaobazhou water conservancy project, clarified these cautions to be taken during material and equipment procurement through the discussion on the content of procurement contract ; described the project acceptance and after - event evaluation of gaobazhou water conservancy project, fully defined the content for the final acceptance of the project ; fully described the comprehensive management carried out on gaobazhou water conservancy project, mainly focused on the study of information management, communication management, conflict management and risk management, which ensured the smooth execution of the project

    本文通過對高壩洲水利樞紐工程項目實施的研究，論證了高壩洲水利樞紐工程項目在技術上是可行的，在經濟上是合理的，在外部環境方面符合國家的宏觀政策；闡述了高壩洲水利樞紐工程設計過程的全面管理，充分論證了設計方案的選擇及設計質量的高低，直接關繫到工程項目的投資、質量和工程進度的控制好壞；闡述了高壩洲水利樞紐工程施工過程的全面管理，論述了監理在施工過程中的管理程序和方法，施工單位遵循一定的監理程序，依據施工合同科學合理地完成施工任務；闡述了高壩洲水利樞紐物質設備的采購管理，通過對采購合同內容的論述，明確了物質設備采購時應注意的問題；闡述了高壩洲水利樞紐工程項目驗收及后評價，明確了高壩洲水利樞紐工程項目竣工驗收的內容；較全面地闡述了高壩洲水利樞紐工程項目實施的綜合管理，重點研究了保證高壩洲水利樞紐工程項目順利實施的信息管理、溝通管理、沖突管理和風險管理。
  14. Based on the method of fuzzy mathematical comprehensive evaluation, this paper assesses the quality of atmosphere in wuhan with selecting so2, no2 and pm10 as evaluation factors, consulting the standards relevant to atmosphere environment and building the attaching function and the weight muster

    摘要運用模糊綜合評判的方法，選取二氧化硫、二氧化氮和可吸入顆粒物作為評價因子，參照我國環境空氣質量標準，通過建立各污染物的隸屬函數和權重集，計算出各污染物的隸屬度和權重分配系數，進而對武漢市空氣質量進行模糊綜合評判。
  15. In term of the meaning of urban land basic standard price and the aim and basic principle of renewal, based on the steps of establishing the land price dynamic monitoring system, the paper has discussed partition of the equal - nature area, selection of the standard lots, evaluation of demarcate land price, compilation of land price exponent

    本文結合城鎮基準地價的內涵、基準地價更新的目的、基本原則，根據地價動態監測體系的建立步驟，探討均質地域的劃分、標準宗地的選取、標定地價的評估、地價指數的編制，重點對標定地價和地價指數在城鎮基準地價更新中的應用展開了研究。
  16. Finally, the thesis sets up the model of profit quality evaluation of listed companies. in the part of demonstration, the thesis chooses 40 sample listed companies in shanghai and shenzhen securities business. with these 2000 - - 2002 annual financial reports of the 40 listed companies, it obtains the proportion of the indexes by the means of factor analysis. finally, it ranks the profit quality of the 40 listed companies, analyses the reason the profit quality changes, and verifies the evaluation model by demonstration

    選取了滬、深兩市40家樣本上市公司，以其2000 ? ? 2002年的年報為資料，通過因子分析法來確定上市公司利潤質量評價體系的指標權重；按照綜合因子得分對這40家上市公司的三年利潤質量分別進行排序，分析其利潤質量變化的原因，從實證角度驗證了模型。
  17. Prove that the chief judge selection and appointment system is functional in increasing judicial independence and authority, and improving judicial efficiency and judge ' s quality, based on the overall analysis of that chief judge selection and appointment system can realize judicial independence, analysis of outside judicial environment for the system operation, and objective and effect of enforcing the system. the fourth part analyzes the problems existing in our country ' s current chief judge selection and appointment system

    從我國審判長選任制實現司法獨立的價值取向，審判長選任制運行的外部司法環境，實行審判長選任制的價值目標和運行效應等多個角度進行論證分析，重點論證了在目前的司法環境下實行審判長選任制起到的增強司法獨立和權威、提高司法效率和法官素質的積極作用。
  18. The results on edta and some metal ions, combined with the excellent recovery effect of cu2 + on detc - inhibited po activity, indicate that this po is a kind of cu2 + metalloenzyme. the effect of polysaccharides and vibrios on the hemocytes and po from shrimp was investigated. under the stimulation of p - glucan, the number of all hemocytes, the number of semigranular cells, the amount of po synthesized and po activity increased about 83. 4 %, 100. 4 %, 104. 7 % and 79. 4 %, respectively

    篩選出高效的免疫促進劑，查清其增強對蝦自身免疫力的分子機制，不僅具有重要的理論意義，中國對蝦酚氛化酶的生物化學性質及幾種免疫促進劑對對蝦酚氛化隴和血細胞的影晌而且對于利用免疫促進劑增強對蝦免疫力、降低死亡率，促進對蝦養殖業的可持續發展，還具有重要的應用價值。
  19. Based on the above qualitative studies, combining the data collected from the social typical sampling investigations with the reliability analysis by using methodology of symbolic statistic, an evaluation methodology for the key property on the technology of food security in quality was explored, finally case studies of the evaluation methodology for the key property on the technology of food security in quality were conducted, important technology types and categories for the food security in quality were selected in the view of strategy, and series of countermeasures for macroscopic development of the technology of food security in quality were also put forwarded

    然後，通過社會典型抽樣調查（專家問卷法）得到第一手數據，運用sas 、 excel和灰色關聯分析等數理統計與分析方法，對問卷的可靠性進行了研究，建立了食物質量安全技術「關鍵性」的評價方法，並進行了實證評價分析，對我國食物質量安全技術的重點技術類型、關鍵技術種類等進行戰略選擇，提出了我國食物質量安全關鍵技術的一系列宏觀發展對策。
  20. Adopt the mean of analyzing the factors which influence the output of the crops to quantity and determine the factors, assess the correlation among the grading factors in the units and calculate the point value of these factors ; determine the weigh value of the factors. ten factors, which are content of organic matter, thickness of soil layer, quality of soil, pickled degree of land, condition of irrigation and state of shelter belt, the degree of land " s leveling, central focus region ( focus region location ), utilization method of soil, are chosen as grading index at last

    本文採用因素法定量化評價各地塊定級單元的相關性和權重性，最終選定了有機質含量、土層厚度、土壤質地、鹽堿化程度、排水能力、灌溉保證率、防護林完整度、條田平整度、中心區位，土地利用方式等因子作為定級的指標，使用了加權加和因素法進行了的定級計算，逐步完成了農用地質量情況的評價，劃分出了級別。
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