比重選種 的英文怎麼說

中文拼音 [bǐzhòngxuǎnzhǒng]
比重選種 英文
specific gravity selection
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 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...
  • 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
  • 種 : 種名詞（姓氏） a surname
  • 比重 : 1 （部分在整體中所佔的分量; 比值） proportion 2 [物理學] （物體重量和其體積的比值） specific grav...
  • 選種 : seed selection; strain selection
  1. The total rna was isolated from pokeweed ( phytolacca americana ) leaves using the method of guanidine isothiocyante and used as template to amplify the total length and deleted mutant pokeweed antiviral protein ( pap ) gene by rt - pcr and then the pap gene was cloned into pgem - t vector. the sequencing results showed that pap gene had 99. 9 % identity comparing with the pap gene nucleotide sequence reported by lin et al ( 1991 ). the iptg - inducible expression vector containing the pap gene was constructed and transferred into e. coli bl21 ( de3 ) - plyss

    將缺失型pap基因克隆到植物表達載體pbi121中，通過液氮冷凍法將重組質粒轉入農桿菌lba4404細胞中，然後採用葉盤法，在該農桿菌的介導下將pap基因導入普通煙草中，經過卡那黴素抗性篩選，最後獲得了轉pap基因的工程煙草植株，摩擦接種煙草花葉病毒（ tmv ） ，與非轉基因煙草相比，能夠推遲癥狀表現達2月之久，說明pap基因能夠在其它植物體內產生有活性的高抗病毒的蛋白質。
  2. In the next place, comparing each appraisable method, and combining the practical instance of railway acceleration, the thesis finally selects fuzzy synthesis evaluating method that could be much more compatible. besides on the basis of inheriting the outcome of former research, the thesis mainly study and summarize a mistiness system. make it the basic mind and method

    其次，通過對各種評價方法的比較，並結合鐵路提速這樣一個模糊系統的實際情況，本文選用了更為合適的模糊綜合評價法。並且，在繼承學界前輩科研成果的基礎上，本文重點研究並總結了對於一個模糊系統，評價其社會效益的基本思路和方法。
  3. The complete nucleotide sequence of the mitochondrial genome of f. limnocharis was detailedly compared with those of 5 other amphibians. the nucleotide sequences of 22 trna encoded by 6 amphibians mitochondrial genomes were combined and aligned to the homologous sequences of the 11 veterbrate taxa. using teleosts as outgroup, the phylogenetic analyses results show that mp, nj and ml trees all strongly support the monophyly of living amphibians with respect to other living tetrapods and favor a sister group relationship for caecilians and salamanders

    我們在測定了澤蛙線粒體全基因組序列的基礎上，與已知其它的5種兩棲類進行詳細的比較分析，同時選擇了11種高等脊椎動物的線粒體全基因序列，以硬骨魚類做外群，用22個trna基因合併數據進行系統發生重建分析，結果表明mp 、 nj和ml樹都強力地支持現生兩棲類動物為單系群並且蠑螈類和蚓螈類為姐妹群關系（自引導值分別為92 、 99 、 100 ） 。
  4. The initial vsd process uses two main characters, the average instantaneous energy and the average instantaneous zero crossing rate ( zcr ). to make the first recognition for the start and the end, the emphasis of which is to select the appropriate value of the threshold and the length of frame. in the final vsd process, the author compares several characters and confirms the new recognition character

    初步分段過程使用了能量和過零率這兩個主要特徵進行端點檢測，重點是合理選擇兩個重要參數? ?門限和統計幀長度的取值；在最終分段過程中，筆者首先通過比較幾種特徵的識別效果，選擇卡爾曼濾波參數作為再次分段的識別特徵，還提出了一種新的識別特徵? ?周期性緩變特徵，使用這兩個特徵分別在子語音段內進行端點檢測。
  5. In the 20 years of reform and opening, shandong peninsula is the typical area in china with rapid economic development. the transition of second and third industr ies has achieved periodical success, but are facing fundamental structural and in stitutional confilects at present. the paper analyses the status in quo, advantage s and disadvantages of the transition, discusses the trends and rational patterns, and put forward the countermeasures of the transition. the author attempts to us e economic functions analyzing two kinds of develop patterns so as to compare th eir advantages. the paper strengthened the importance of labor intensified indust ry which is often ignored ; find out the key point of the transition of capital in tensified industry, extraverted economy and the third industry ; integrating the development rules of industry and region, bring forward the method of “ choosing priority, half step and walk faster ” for the growth of knowledge economy which is widely noticed recently

    山東半島是改革開放20年來區域經濟發展較快、在國內具有典型意義的地區，該區二三產業的轉型已取得初步成果，但仍面臨突出的結構性和體制性矛盾.本文分析了山東半島二三產業轉型的現狀、利弊條件，探討了轉型的趨勢和適宜模式，最後提出了對策和措施.文中嘗運用柯布?道格拉斯方程進行兩種發展模式的對比分析以辨別利弊，強調了常為人忽視的勞動密集型產業的作用，論述了發展資本密集型產業、外向型經濟及第三產業的重點，結合產業和區域發展規律，對近來廣受關注的知識經濟的發展提出了「選擇重點、小步快走」的觀點
  6. Using the data of these nhtidzs from 1992 to 2001, paying attention to those index reflecting the industrial level and ability, we establish an evaluating item system, and rank the 53 zones by three different methods in long and middle term, analysis some special phenomenon in this thesis. the three methods are : ahp ( analytic hierarchy process ), topsis ( technique for order preference by similarity to ideal solution ) and rsr ( rank sum ratio )

    本文利用全國53家高新區1992年至2001年間的各項經濟指標，側重選擇反映高新區產業化水平及能力的相關指標和經濟發展指標，利用分層分析法、 topsis法、秩和比法三種不同的方法，分長期、中期兩個時限，對全國高新區進行了排序，並對一些有代表性的現象進行了分析。
  7. Choose two nodes on the edge of the structural to compare the results calculating by the finite element program midas, then we can draw a conclusion that these kinds of space truss systems is sensitive to the libration of the dynamic wind loads. to consider this factor is very necessary in the process of design, we will use the pulsant augmentation coefficient to realize it

    比較靜力風荷載和動力風荷載作用下的有限元軟體的計算結果，選取結構邊緣部分的兩個節點，對比它們在兩種方法計算下的最大位移的計算結果。經過比較可以看出重量輕、頻率低、阻尼小的柔性建築物對風荷載的橫向振動是很敏感的，在進行工程設計時應該考慮這種因素，並可採用乘以風振系數等相應方法來加以體現。
  8. Two methods were proposed which could effectively order and select perceptually most important sinusoids

    提出兩種對感知上重要的正弦波進行排序和選擇的方法，它們對噪掩比的改善作用最大。
  9. The innovations of this thesis can be summarized into three points. firstly, the average relative velocity is introducd into a novel adptive weighted clustering algorithm as one important parameter of weight, then it increases the stability and self - adaptability of cluster head. secondly, a new approach to calculating weight is suggested by integrating subjective and objective factors. it is verified by comparison with other approaches to selecting weight. thus the velocity of weight responding to the changes of network topology is increased. finally, using a som neural network to create a classifying model enables every node to learn to identify by itself the role in manet

    本文的創新點有三個:首先本文在wca和aow分簇演算法的基礎上，引入了平均相對移動速度作為權值重要的參數，提出了一種新的基於權值的自適應分簇演算法，提高了簇頭在移動中的穩定性和自適應性;其次，提出了利用主客觀綜合賦權法確定權重的權值計算方法，通過與其他權重選擇方法比較，網路結構變化的權值響應速度得到了改進;最後，論文利用自組織特徵映射神經網路建立分類模型，使得網路中的節點可以自學習地確定簇中角色。
  10. E ) lack of foresight on finance lease scheme, which causes irrational tenor structure and imbalanced annual outflow of rental payments, results in funding costly. to solve aforesaid problems, thesis finds out the following principles for optimizing ca ' s aircraft finance : a ) determining the volume and currencies of ca ' s cross - border aircraft finance based on the annual outflow of foreign debt repayments and annual net inflow of foreign exchange, so are the dominated currencies in debt. b ) enlarging the portion of borrowings at floating interest rate in ca ' s whole foreign debt

    針對以上存在主要問題，本文進一步提出了優化飛機融資的總體構想，包括：根據其每年的外匯流入總量及幣種構成確定國航合理的飛機境外融資規模應與負債幣種；在利率結構方面，擴大浮動利率在整個國航外債中的比重，選擇適當時機將部分固定利率貸款轉換為浮動利率貸款；在飛機引進多元化方面，通過與飛機製造廠商、出租公司飛機互換的方式優化機隊構成，結合提前中止現有飛機租賃就能夠起到優化債務結構和機隊構成的事半功倍的效果，以及在未來飛機融資中優先使用經營性租賃等。
  11. With the purpose of better understanding some weak links in this subject, we comprehensively and systematically compared the effects of some typical inhibitors and their different combined ways in inhibiting cd bioavailability in purple soil, further studied the laws and affecting factors of cd ' s transfer and transformation in soil - plant system, revealed the mechanisms inhibitors function, and explored the practicable inhibitor prescriptions and their usage. the results are expected to provide reliable techniques for controlling cd pollution of agricultural soils in chongqing and it is also significant to ameliorate soils polluted by other kinds of heavy metals. comprehensive methods including pot experiment, laboratory culture experiment, kinetic and thermodynamic adsorption - desorption experiment were adopted in this study, and the acidified purple soil was chosen to test, considering that cd is highly active in this soil

    本研究針對重慶市農業土壤的污染狀況，選取鎘活性較高的酸化紫色土為供試土壤，採用盆栽試驗、培養試驗、化學熱力學與動力學吸附試驗相結合的方法，系統研究和比較多種調控劑及其不同組合方式對鎘生物活性的效應，並揭示鎘在土壤?植物系統中的遷移轉化規律及影響因素，進一步分析調控劑的作用機理，探尋具有實際應用價值的調控劑配方及合理使用的方法，這不僅可以為重慶市農業土壤鎘污染的防治提供可靠的技術保障，而且對于其它重金屬污染的治理也有一定的理論意義。
  12. The selection effect was evident that 37. 5 % gain in single individual seed yield could be obtained, which achieved the purpose of improving seed orchard yield and increasing the genetic gain

    8年生子代材積可獲得改良增益10 . 6 % ，木材比重可獲得4 . 6 %的增益，種子園單株產種量可獲得增益37 . 5 % ，選擇效果明顯，達到提高種子園產量、增加改良增益的目的。
  13. The purpose of this paper is to find out the characteristics of corporate restructuring and reorganizations under the background of strengthened supervision and improved accounting standards in 2001. using financial data on chinese public firms that had performed restructurings in 2001, this paper studies the impact of restructuring activities on firms " performance. it finds that performance of sample companies are better than the market average both before and after restructuring, but financial ratios does not improve obviously, what ' s more, the roe ratios even drop generally, which are very different from the characteristics during the past few years

    本文採用以財務數據為基礎進行評價的方法，對2001年上市公司資產重組進行研究發現，從資產重組的方式來看，收購兼并所佔比重最高，業績較好的公司偏向于選擇這種重組方式，而資產置換、股權轉讓仍為績差公司所青睞；從重組前後財務指標的變化來看，重組公司表現優於市場平均水平，但與往年重組公司當年業績即得到明顯提升不同， 2001年重組公司財務指標並未得到顯著提高，凈資產收益率更是全面下降，統計對比不支持上市公司利用資產重組調節公司績效的觀點。
  14. The theories foundation of activity - based costing, is to think that the production line should describe for : the production causes activity take place, the product consumes to used to the industry, the function consumes with the resources, thus causing cost take place. this with traditional manufacturing costing the product consume with the cost of principle is different. thus, the activity - based costing checked to track the process of the product formation and the cost backlog with the activity - based costing, carry on make track for to the cost formation to trace to origins originally, set out from here, activity - base method makes research of cost gone deep into more, the cost information is more detailed and turn and even have and can control it

    本論文研究的目的是探討作業成本法在一汽鑄造一廠應用的可能性，運用作業成本法的研究方法對一汽鑄造一廠的產品成本進行分析，對比傳統成本法和作業成本法下的成本，對兩種成本的差異進行分析，產生差異的原因。通過建立作業成本庫、選擇成本動因，將成本分配到相應的作業成本庫，分別將傳統成本法和作業成本法下的成本計算到每種鑄件，再進行成本對比，重點分析差異較大的產品的成本構成，在此基礎上，對企業生產作業流程的重新評價，對產品的成本構成有更全面的了解，對企業管理層提出了解決成本信息失真，改變產品定價策略，降低生產成本和改善企業內部管理的建議。
  15. First, based on investigation and analysis on real estate background and the actual situation of jiangbei real estate development company, the problems and the foundmental root causes existing in the operation management are found out. secendly, according to the requirements of modern business management theory and modern enterprise system, a business management model with quality management being the core is put forward by comparing and analyzing several management models, and selecting one management model as the major with multiple management models existing. based on this, the author has designed the main frame for the management model, completed organizational structure designing, department function and work position describing, work flow and work process designing, establishment of regulations, and formed the organizational structure of the management model. in addition, the varies important management actions, including human resources management, quality management, financial management, marketing management, information management, are analyzed and studied in order to enrich and improve the content of the management model. finally, the author has also put forward the measures and requirements to ensure the effective operation of the management model

    首先，在調查研究的基礎上，通過對房地產行業背景和江北房地產開發公司現狀的分析，找出公司現行狀態下經營管理中存在的問題和困難，並分析原因，查找根源；其次，根據現代企業管理理論和現代企業制度的要求，通過對幾種較為流行的管理模式的分析比較，選擇以一種管理模式為主，多種管理模式相結合的方法，提出以質量管理為核心的企業管理模式；在此基礎上，對管理模式進行整體性的組織設計，完成組織結構設計、部門職能制定和崗位描述、工作流程及工作程序設計、規章制度體系的建立等工作，構建管理模式的整體框架；另外，針對各項重要的管理活動，如人力資源管理、質量管理、財務管理、營銷管理和信息管理等，分別進行分析研究，以充實和完善管理模式框架的具體內容；最後，為確保管理模式順利、有效地運行，明確提出「完善公司內部治理機制，健全公司外部治理機制」的保障措施和具體實施步驟。
  16. In this thesis, a design scheme is introduced about whole early - warning system ’ s structure according to the optical needs. the focus is placed on the pointing speculum ’ s light - weighting design. through comparison, sic is selected as the speculum ’ s material which has features of high strength, low density, well comprehensive performance and being adaptable for space environment

    本文首先根據光學需要對導彈預警系統總體結構進行了設計，重點對其中的關鍵部件指向反射鏡進行了輕量化設計，通過比較選擇了合適空間環境且具有高強度、低密度、綜合性能好的sic作為反射鏡的材料，運用有限元分析軟體ansys對幾種輕量化結構分別進行優化，通過比較最後確定指向反射鏡輕量化結構及尺寸。
  17. After introduced the feasibility and the principle and method of using gprs cell - phone is discussed, a hydrology telemetric system based on gprs mobile phone is structured, planned, and designed, the central station and remote stations are realized, some improvement and a circuit graph of the structure of remote stations is given. finally, the main structure and some important part of system communication program is given. this dissertation also probed the cpfsk method using mcu

    本文探討了水情遙測系統的組成結構，現有的各類水情數據通信方式的優缺點，以及多種移動通信方式，並比較各種水情通信方式的優缺點；分析在水情遙測系統中使用gprs蜂窩電話的可行性及其選型原理等情況，並著重探討了基於gsm通信方式的水情遙測系統的組成結構、工作原理及中心站、遙測站等，改進遙測站結構，並給出改進后的遙測站的實驗電路圖。
  18. Investigated the hardware and software of high - voltage transmission line microcomputer reclosing devices, and expounded its design ideology and main function. 3. analyzed errors of auto - reclosing synchronization and offered the countermeasure for the errors ; analyzed the misoperation reason of the high - voltage line microcomputer reclosing device and discovered the root of errors and put forward three solutions ; compared the three methods and selected the best one to run in practice

    3 、論文對自動重合閘檢同期所存在的誤區進行了分析與研究，為走出誤區提供了對策;對高壓輸電線路微機重合閘裝置所出現的誤動作原因進行了分析研究，找到了問題的根源，提出了三種解決問題的方法，並對每種方法的利弊進行了比較，選取最優方案投入現場運行。
  19. Secondly ， conceptual dependency theory is chosen as an important complementarity to the method based on knowledge ， through analysis and compares of several existing semantic analysis method present. and concept is discussed thoroughly based on resource model

    2 .通過對目前現有的幾種語義分析方法的分析和比較，選擇概念從屬理論作為基於知識的方法的重要補充，並應用資源模型對概念進行了深入探討。
  20. They are agricultural productive materials price growth rate, sown area of grain crops growth rate, grain yield per area growth rate -, natural disaster covered grain areas growth rate, net grain import change rate, grain reserve change rate, population growth rate, per income growth rate, city and town population growth rate, food industry production value growth rate, year - end pig number growth rate, medical & pharmaceutical and textile industry production value growth rate, grain marketization degree, inflation rate using the previous year as base year ( preceding year = 100 ), public grain purchases price growth rate, investment in agricultural science and technology growth rate, investment in agricultural infrastructure growth rate, growth rate of graduates number from agriculture, forestry, science & technology universities and colleges and specialized secondary schools, government expenditure for agriculture and agricultural credit growth rate, international grain price growth rate, rmb exchange rate growth rate, last grain price growth rate, economic crop price growth rate, meanwhile, a new method is attempted to be used in this paper and the grain price early - warning problem is transformed into machine learning problem by introducing statistic learning theory and svm method which are gaining popularity in machine learning field at present in the world

    在此基礎上，篩選出23個警兆指標：農用生產資料價格增長率、糧食播種面積增長率、糧食單產增長率、糧食受災面積增長率、糧食凈進口量變化率、糧食儲備變動率、人口增長率、人均收入增長率、城鎮人口增長率、食品工業產值增長率、豬年末頭數增長率、醫藥紡織工業產值增長率、糧食市場化程度、以上年為基年的通貨膨脹率、國家糧食定購價格增長率、農業科技投入增長率、農業基礎設施投入增長率、農、林、科技高校大、中專畢業生人數增長率、財政支農資金比重及農業信貸增長率、國際糧食市場價格增長率、人民幣匯率增長率、上期糧食價格增長率、經濟作物價格增長率。同時論文在預警方法上作了新的嘗試，把糧食價格預警問題轉換成一個機器學習問題，引進當前國際上機器學習領域中比較熱門的統計學習理論和支持向量機方法，用順序回歸演算法對歷史數據進行學習建立了糧食價格預警模型。
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