equivalent area 中文意思是什麼

equivalent area 解釋
當量面積
  • equivalent : adj 1 相當的，相同的，同等的。2 【化學】等價的，當量的；【數學】等價的；等量的；等勢的；【物理學...
  • area : n. 1. 面積；平地；地面。2. 空地；〈英國〉地下室前的空地。3. 地區，地方；〈比喻〉區域；范圍。
  1. Ebs test method for equivalent black area of dirt in pulp, paper and paperboard by image analysis

    利用圖形分析法進行紙板紙和紙漿礦渣中等價黑區
  2. Guided by this model, the author overlays the favorable ore - forming information layer by equivalent weight and carries through junction and union spatial calculation and so on, so generating fruit file, utilizes it delineating favorable ore - forming zones, that is to say, prospect area

    在該模式指導下，最終在gis平臺上對有利成礦信息層等權疊加，進行交、並等空間運算，生成結果文件，利用該結果文件圈劃有利成礦地段?勘查靶區。
  3. 2 ) linking the classical control theory with practice, it tries drawing a sententious and practical conclusion by optimization. correctness is proved by emulation with robust toolbox of matlab. 3 ) in view of the complicacy of the circuits, it optimizes reactive compensation by equivalent area theorem and programs by c. it has been used in practice and gets good benefit

    2 ）結合多年工作經驗和一些經典控制理論對幾種典型負荷網路的補償容量、補償位置進行優化，尋求比較實用、可行的結論，並對其進行基於matlab的模擬，證明其正確性、可行性，使其具有更廣的應用性。
  4. The result of dca ordination shows that diffirent plant communities and their distributing area vary with the environmental grads in the ordination graph when the first axis of dca denotes altitude change and the sencond axis of dca denotes change of water equivalent in the soil

    Dca排序結果表明， dca第一軸反映海拔變化， dca第二軸表示土壤含水量的變化，隨著環境梯度變化，不同的植物群落在排序圖上也有各自的分佈范圍。
  5. ( 5 ) parameterization of infrared satellite cloud imagery and its application in rainfall predication obvious correlation exist between the probability of rain and parameterization estimate such as average brightness temperature ( tb ), brightness temperature variance ( f ), equivalent cloudage ( cn ), brightness temperature area index ( al - the first a5 - the fifth grade, a6 - the sixth grade )

    （ 5 ）衛星雲圖參數化及在降雨預測中的應用紅外衛星雲圖參數化估計值，與局地降雨過程的發生、發展具有較為密切的關系。相關較密切的參數有平均亮溫、亮溫方差、等效雲量、亮溫面積指數（ 1級、 5級、 6級） 。
  6. The critical concentration and critical particle surface area in constant rate section is studied. the floc density pa and the floc equivalent diameter da are calculated on the basis of experimental data and theoretic analysis

    研究了等速段的臨界濃度、臨界顆粒表面積；分析計算了絮團密度_ 、泥沙絮團當量直徑d _ 。
  7. Abstract : according to the base flow separation results from hydrographs in many watershed, the best regression equation expressing the relationship between annual precipitation infiltration coefficient and the weight of different strata area to total area of the watershed is established. the equation can be used to calculate the precipitation infiltration recharge for different ground water basins in which the strata distribution and the precipitation are given. the precipitation recharge is equivalent to the ground water recharge in some mountainous area where the exploitation of ground water resources are far from being sufficient

    文摘:降水入滲補給系數與地層相關分析的目的，是為推求山丘區降水入滲補給量.魯中山丘區是由各種不同地層出露組成的山丘區域.在多個水文流域基流分割基礎上，建立流域年均降水入滲補給系數與各種地層出露面積占流域總面積權重間的最佳回歸方程，利用該回歸方程和地層分佈及降水量推算不同地下水流域的降水入滲補給量.在地下水開發利用不高的山丘區，降水入滲補給量即為地下水補給量
  8. Using these data, we estimated cotton planting farmers " pesticides application equation and damage control production function, calculated the impact of bt cotton on pesticides use and cotton yield, and compared the poisonging probability due to pesticides application between bt cotton and non - bt cotton planting farmers. using bt cotton adoption area and the above results, this paper calculates the impacts of bt cotton on pesticides application, cotton production and poison cases all over china since the beginning of its adoption in china in 1997. the results demonstrate that the adoption of bt cotton reduced pesticides use approximatly 35kg per ha ; this is equivalent to 875 yuan of cost reduction

    利用這些數據我們估計了種植棉花（包括轉基因抗蟲棉和非抗蟲棉）農產農藥施用方程和棉花損失控制生產函數（ damagecontrolproductionfunction ） ，估計了抗蟲棉對棉花農藥使用和棉花產量的影響，同時比較了種植bt棉與非bt棉農產在使用農藥過程中中毒概率的差異，在此基礎上，利用抗蟲棉在全國各地的推廣面積以及以上的分析結果，測算了1997年以來抗蟲棉的推廣對全國棉花農藥使用量、棉花產量以及棉農施農藥中毒事件的影響，並對其經濟影響的不同受益者作了分析分解。
  9. Inspected from bt cotton planting area of china from 1997 - 2001, due to bt cotton adoption, it ' s estimated that the increment in cotton production is totaly 798 thousand ton, equivalent to 2630 million yuan in output value ( the cotton price is average cotton price of china ). the decrements in pesticides use in these 5 years were respectively 0. 1 ( thousand ton ), 0. 3, 14. 7, 31. 4 and 51. 8

    利用以上研究結果以及1997 2001年全國bt抗蟲棉的播種面積，我們推算出bt棉推廣的總影響，由於該作物的推廣，全國5年累計增加棉花產量79 8萬噸，相當于增加棉花產值26 3億元（籽棉價格按全國每年的平均價格計算） 。
  10. ( 3 ) based on the theory of linear diffraction, the linear propagation of obscuration is analyzed through equivalent diffraction distances, fresnel parameter, and obscuration ’ s area percent by the optical propagation software

    用中國工程物理研究院研發的光傳輸軟體數值模擬驗證了散射點的衍射規律。三、從散射點線性理論基礎上分析散射點的傳輸規律。
  11. Such conclusion is given : shorten the fresnel shu, shorten the obscuration ’ s area percent and shorten the equivalent diffraction distances will improve the optical quality. ( 4 ) the nonlinear paraxial equation is understood to analyze the n slabs ’ hot - image rule

    得出在高功率固體激光裝置中應縮小散射點的菲涅耳數和散射面積比，控制散射點的等效衍射距離，使散射點接近等效衍射距離為零，即像面的位置。
  12. Secondly, by means of arranging and analyzing the construction monitor data, the practicality method of proposing the dewatering calculation model and parameters of the non - constantly pumping dewatering well was proposed, moreover the equivalent calculation model and parameters of the erhe project was proposed. thirdly, based on calculating the design scheme of dewatering well with the equivalent calculation model, the optimized scheme of dewatering well of the erhe project was proposed and the well number was reduced to 32 where it was 42 in the old scheme. at last, based on the well construction, the dewatering well structure and constructing technique in the soft soil area were exploited in addition, the significative analysis and evaluation attitudes to the old design scheme of dewatering well project were impersonally proposed

    首先，根據工程地質及水文地質條件和工期分析，提出了「二河」降水井的設計方案；其次，通過系統整理分析抽水井的施工監測記錄，提出了用降水井的施工監測確定非定常抽水降水井井流模型和參數的實用方法，並建立和確定了「二河」降水井非定常抽水、有越流的完整潛水井等效模型和參數；接著，通過用等效井流模型進行降水井方案的計算，提出了「二河」降水井的優化方案，使原方案的42眼井降到32眼井；最後，通過對降水井成井施工實踐的總結，開發了適于軟土區的降水井結構和成井施工技術。
  13. The goods of preemptive free tax zone, goods of free tax zone gives a division, be equivalent to an entrance, course of study of area foreign enterprise should declare an entrance first, handling export next

    先買保稅區的貨物，保稅區貨物出區，相當于進口，區外企業應該先申報進口，然後在辦理出口
  14. This paper take comprehensive development project - " enrich farmers through water conservancy ( eftwc project ) " in pinggu district, beijing as an example or research area, to built up indexes system for evaluating such projects based on the analysis of the project ' s functions ; to evaluate the effects of eftwc project on the development of agricultural economy in research area with statistic analysis method, such as the theory of gray system and regression analysis method. the key points of this paper are focused on as following aspects : ( 1 ) the value of eco - environmental benefits of eftwc project in pinggu district is evaluated based on utility value theory and environmental economic methods such as equivalent substitution approach, opportunity cost approach, and replacement cost ap proach ; ( 2 ) the economic effects on investment are appraised with both static and dynamic cost - benefit analysis methods ; and ( 3 ) the effects of the eftwc project on the economy and society sustainability in research area are evaluated synthetically from three aspects : society development ability, economy development ability and resources and environmental capacity

    本文以北京市平谷區水利富民綜合開發工程為例，在分析了水利富民綜合開發工程功能的基礎上，建立了水利富民綜合開發工程效益價值評估的指標體系；用灰色系統理論、回歸分析等統計分析方法進行了水利富民綜合開發工程對平谷區農業經濟發展的影響評價；重點以效用價值論為理論依據，用等效替代法、機會成本法和重置成本法（恢復費用法）等環境經濟學方法，對平谷區水利富民綜合開發工程生態環境效益價值進行了評估；採用靜態和動態費用效益分析法進行了水利富民綜合開發工程投資經濟效果分析；最後從社會發展能力、經濟發展能力和資源環境承載能力3個方面進行了水利富民綜合開發工程對平谷區經濟社會可持續發展能力的綜合影響評價。
  15. A person in possession of a single journey ticket beyond the destination of its validity is liable to be surcharge unless, at the discretion of an authorized person an excess fare may be paid in an amount equivalent to the difference between the encoded fare value of the single journey ticket and the appropriate fare from the station of entry to the station of exit, before leaving the paid area

    如乘客實際乘車路程超越已付車費的路程，必須繳交附加費，除非獲授權者酌情決定該乘客可在離開已付車費區域前補回應繳車費與已付車費的差額。如未繳交補票費，乘客將被徵收附加費和被檢控。
  16. A person in possession of a sjt beyond the destination of its validity is liable to be surcharged unless, in the discretion of an authorized person an excess fare may be paid in an amount equivalent to the difference between the encoded fare value of the sjt and the appropriate fare from the station of entry to the station of exit, before leaving the paid area

    如乘客實際乘車路程超越已付車費之路程，必須繳交附加費，除非獲授權人酌情決定該乘客可在離開已付車費區域前補回應繳車費與已付車費之差額。如未繳交補票費，乘客將被徵收附加費和被檢控。
  17. Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system

    該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。
  18. The dissertation also does a research on the control strategies of mechanical control parts. the theoretical expression among needle valve throttle area, cam - control valve throttle area and the equivalent throttle area of combining control is given, and the principle of combining control of the two valves is analyzed. the arresting control strategies under various engaging conditions are presented, namely the engaging condition of same overrunning length and same engaging speed but different weight, the engaging condition of same overrunning length and same weight but different speed as well as the engaging condition of same weight and same engaging speed but different overrunning length

    研究了機械控制機構的控制策略：從理論上推導出了針閥節流面積、凸輪控制閥節流面積及聯合控制的當量節流面積三者之間的關系表達式；分析了針閥與凸輪閥聯合控制的控制原理和方法；給出了同攔停距離同撞網速度不同重量飛機撞網狀況、同攔停距離相同重量不同撞網速度飛機撞網狀況以及同重量飛機同撞網速度不同攔停距離撞網狀況的攔阻控制策略。
  19. The permitted total emission equivalent quantity of urban air pollutants and its distribution in urban area, which can be used as regional air pollution control index and can be allocated to each major pollution source as its limit of emission quantity, can be worked out by using linear programming model based on regional grid air pollutants transfer matrix which considers the difference of functional regions and the justice of the permitted emission ' s distribution

    通過將區域劃分為不同的功能區和管理小區，構造區域間大氣污染物轉移矩陣及利用線性規劃模型來確定城市大氣污染物允許排放當量及分佈，並以此作為區域控制指標分配至污染源，充分體現環境功能區差異和容量分配的公平性。
  20. Blade section designed based on equivalent operating curve can effectively control the cavitaion area and type, and the desired cavitation performance can obtained

    基於等效運轉曲線設計的槳葉剖面能有效地控制空泡范圍和空泡類型，得到期望的空泡性能。
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