practical yield 中文意思是什麼
practical yield
解釋
實際產量-
However, the general - purpose image measurement system yield a lot of discommodity and insufficiency in particular applications. so the development of this task has its essential and practical significance
而已經商業化的通用性的應用系統對于特定應用場合來說不一定能滿足需要，因此，該課題的提出有其必要性和現實的意義。 -
Image measurement and analysis on - line and at high accuracy has been applied in many industrial filed widely. however, the general - purpose and some special - purpose image - processing system yield a lot of discommodity and insufficiency in particular applications. so the development of this task has its essential and practical significance
圖象的在線和高精度的測量分析也越來越廣泛的應用於工業的許多領域，而已經商業化的應用系統對特定應用場合有許多的不便和不足，因此，該課題的提出有其必要性和現實的意義。 -
To solve the inaccuracy problem caused by the two existing methods ( average end - area method and prismoidal method ) used for the calculation of roadway earthwork volume, this paper puts forward a new concept of the 3 - dimensional algorithm that takes all the roadway geometric design procedures as a kind of geometrical operation between the ground model ( original terrain model ) and the roadway model ( designed model ) under certain constraints, and then presents a complete 3 - dimensional algorithm of roadway earthwork volume as well as its executable computer program. the algorithm benefits from the re - triangulation technique of constrained delaunay triangulation ( cdt ), which can yield a true volume value theoretically. through a number of practical tests covering varied intervals between adjacent cross sections, it is proven to possess a higher accuracy compared with that of traditional methods. all the work involved in this paper indicates that the 3 - dimensional calculation of roadway earthwork volume is feasible, more accurate and should have further application in practice
針對目前廣泛使用的道路土方量計算方法平均斷面法和稜柱體法計算不準確的缺點，提出了三維土方量計算演算法的概念.該演算法以帶約束的狄羅尼三角化（ cdt ）為技術核心，認為所有道路幾何設計過程都是地面模型和道路（設計）模型進行幾何運算的結果.基於此，本文設計出相應的演算法步驟，同時完成了相應的軟體開發，使得該三維演算法能和傳統的方法進行對比.此外，結合工程實例，採用了不同的道路橫斷面間距對三維計算方法和傳統方法的誤差進行比較、分析.結果證明三維演算法具有更好的精度，該演算法可用於道路、場地平整等工程土方量計算 -
Abstract : in accordance with the problems in the system of well storing rainfall at present, based on the experiments of artificial simulating rainfall, and assistance with the measures of natural rainfall, the relationships among the surface runoff yield, silt concentration, catching runoff efficiency and the material of surface, slope gradient, rainfall intensity are analysed systematically. then, the best slope gradient and material of surface are chosen, in condition of which surface rainfall yield is the largest and silt concentration is the smallest. this is a beneficial study for the practical use of the rainwater catchment plot in furture
文摘:針對當前旱井集雨系統存在的問題，利用人工降雨試驗，並輔以天然降雨觀測，系統分析了旱井集流區的產流量、含沙率、集流效率與下墊面材料、坡度、降雨強度的關系，進而選出了最優坡度及最優下墊面材料，為今後旱井集流區的應用研究做了有益的探討。 -
In terms of desertification prevention, water - soil erosion treatment, innovation of medium and lower - yield fields, the restoration and reconstruction of degenerate ecologic system, environmental pollution control, mariculture and marine medicine, they provide a batch of practical technology and mode
在沙漠化防治、水土流失治理、中低產田改造、退化生態系統恢復與重建、環境污染控制等方面、海水養殖和海洋藥物等方面，提供了一批實用的技術和模式。 -
This research investigated the variability and the quantitative relationships among soil nutrients ( soil ph, total n, organic matter, available p ), growth status ( spad, lai and spad lai ) and yield of rice. all data were analyzed by both classical statistics and geostatistics based on gis. by further integrating gis, gps and crop management knowledge model, a decision support system for precision farming ( dsspf ) was developed, which laid a technical foundation for the practical application of precision farming system
本研究基於gis技術，以經典統計和地統計學為分析手段，確立了田區土壤養分（土壤ph 、全氮、有機質、速效磷、速效鉀） 、水稻作物長勢（ spad 、 lai 、 spad * lai ）和產量的空間變異特徵及定量關系；進一步以作物管理知識模型為智能決策支撐，提出了gis與模型及gis與gps的組件化集成技術，構建和實現了基於田區作物產量、土壤養分和苗情監測差異的精確農作決策支持系統（ dsspf ） ，為精確農作系統的應用奠定了技術基礎。 -
The main body can be summarized as the following five sections : this paper firstly creatively builds the yield curve of our treasury securities by the method of regressive interpolation and spline. by the empirical study we can see that the method not only can build a smooth yield curve but also can predict the yield to maturity of any given term on the basis of the practical dealing data on the markets
主體內容可概述為以下五部分：論文首先創造性地把回歸插補法和三次樣條插值法結合起來構造了中國的國債收益率曲線，經過實證分析表明，該方法可以以中國國債市場上的實際交易數據為樣本，既能構造平滑的國債收益率曲線，又能預測任意到期期限的國債收益率。 -
This experiment was designed according to the special soil moisture in the north in china as well as the different water requirements in the different growth periods of the maize. the author put forward a practical technique by comparing the water - supply conditions in the different periods of time and ensuring the growth target and the yield target under the best water - supply condition
針對北方旱區土壤水分運動存在冬季緩慢散墑、春季進入強烈跑墑期以及玉米在不同生長期需水差異這一特點，試驗設計提出了節水滲灌這一技術的田間試驗方案，比較不同時期的供水狀況，最後確認在最佳的供水條件下的玉米生長指標及產量指標，提出一套較實用的玉米滲灌節水生產技術。 -
Based on integration of " high yield & benefit and good grain quality of modeled cultivation of foodstuff crop ( rice ) and its consultation system ", this thesis sets it ultimate goal to deal with the knowledge discovery in the consultation system of simulation - optimization decision making in quality and high - yielding rice cultivation. after a close study of the features of the database in rice cultivation, this thesis introduces the system engineering theory of agent aralysing and designing and offers a practical new way to promote the intelligence of the knowledge discovery system in rice cultivation database, to improve the efficiency of data mining and the human - computer interactive ability to realize the integrated knowledge - based combination between human and computer or among the sub - systems
本文以廣西「糧食作物（水稻）兩高一優模式栽培技術集成與咨詢系統研究」為背景，以基於專家系統（ es ）的水稻優質高產栽培模擬優化決策咨詢系統的知識獲取問題為導向，針對水稻栽培數據庫的特點，從系統工程角度引入面向agent的分析與設計思想，提出一種用多agent從水稻栽培數據庫中發現知識的人機合作、半自動的知識獲取方法，實現利用多agent的自主性、反應性和社會性，提高水稻栽培數據庫知識發現系統的智能水平、數據挖掘效率和人機交互能力，實現人機之間、各子系統之間基於知識的柔性綜合集成，為水稻栽培知識發現提供了一條新的可行途徑。 -
Hydroxyquinol triacetate was prepared from p - benzoquinone by 1, 4 - addition reaction with acetic anhydride and then 6, 7 - dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid. then 6, 7 - dimethoxy coumarin was synthesized by methylating from 6, 7 - dihydroxy coumarin with an overall yield of 74. 4 %. the procedure was practical. its structure was confirmed by ir and 1hnmr
對苯醌與乙酸酐經1 ， 4 -加成生成1 ， 2 ， 4 -苯三酚三乙酸酯，然後與蘋果酸反應經水解、環合反應得6 ， 7 -二羥基香豆素，再經甲基化得到6 ， 7 -二甲氧基香豆素，總收率為74 . 4 % ，整個過程反應條件溫和，操作方便，適合工業生產的要求，對產品結構進行了ir和1hnmr表徵。 -
In the technical investigations on laser surface hardening for metal materials, new processes and techniques were developed to effectively improve the surface properties of some special equipment or component parts made of steel and meet the practical requirements. the work is to extend the application yield and to accelerate the application process of laser processing technology
以應用需求為目標，研究某些鋼鐵材料構成的機器設備、零部件的表面強化技術，尋求更有效、更經濟、更方便地提高機器設備零部件表面性能的新方法、新工藝，拓寬激光熱處理的應用范圍，推動激光表面處理技術工業化進程。 -
Abstract : based on the dynamic response model of crop to water - salinity, the relation between crop growing and soil - salt movement is analyzed. the optimal design model of irrigation schedule for high yield, water saving and salinity control is proposed. it helps to promote the management of water saving and utilization of poor quality water. case study shows that the model is reasonable and practical, the percentage of fresh water saved is 31. 1 % and the crop yield is optimized
文摘:本文根據作物水鹽動態響應函數，分析了作物生長與土壤水鹽運動關系，建立了節水、控鹽、高產灌溉制度優化設計模型，為節水灌溉和微鹹水利用提供了決策依據.實例分析表明，本文提供的模型及方法是合理的；實施節水、控鹽灌溉制度能帶來明顯的經濟效益和環境效益 -
In practical auto outer panel application, both steels attain a considerably high yield strength after press forming, but it does not increase after baking
汽車外板實物分析結果表明，兩種鋼沖壓成形后再烘烤，其屈服強度幾乎沒有提高。 -
Then based on the practical test technique of emt, it checks up whether chinese securities market is at weak - form - market phase by analyzing that whether the price is random whether the yield can be forecasted by the characters of company, whether the information lingeringly or overly reacts and whether the technical analysis is efficient. the result expresses that the securities market has not reach weak - form - market, it still has low efficiency
接著根據證券市場效率理論的實證檢驗方法，通過價格是否隨機性、是否可用公司特徵來預測收益率、信息是否存在延遲與過度反應、技術分析是否有效等檢驗方法對我國證券市場是否處於弱式有效階段進行實證檢驗，結果表明我國的證券市場尚未達到弱式有效，依然處于低效率之中。 -
The effect of different fertilization patterns ( such as normal chemical fertilizer, maize straw and farm manure ) on soil respiration has been measured by the method of static chamber alkaline absorbing and the difference of soil carbon cycle has been analyzed by quantity. by studying the effect of different fertilization patterns on soil nutrients and yield, the sustainable fertilization patterns of farm ecosystem was explored, especially supply the practical direction and theory guiding for developing ecological agriculture and organic agriculture
本試驗在不同培肥模式下（常規化肥培肥、秸稈還田、農肥培肥） ，通過研究不同培肥模式對土壤呼吸速率的影響，定量分析比較各培肥模式下玉米田生態系統土壤碳循環變化差異；研究不同培肥模式對土壤養分和產量的影響，探討可持續發展的農田生態系統培肥模式，特別是為發展生態農業和有機農業提供理論依據和實踐指導。 -
This research based on the cotton sows area distributes and yield undulate regulation above, then applied " the cotton production from economic prosper region transfers to underdevelopment region " model, and period analysis method and self adapt model etc., constructing a set of practical productions estimate model or method on compute
本研究是以上述棉花播種面積分佈和單產波動規律為基礎，即應用「棉花生產從經濟發達地區向經濟欠發達地區轉移」模型、以及周期分析法和自適應模型等，在計算機上建造而成一套實用的生產預測模型或方法。 -
The model is effective and practical, and is ready for optimization use. 4. formulation and implementation of yield optimization were intensively studied
實時優化操作系統使生產在保持平穩的前提下逐步調優，不斷改進操作條件。 -
Abstract : this paper outlines the normal and reversal imaging mechanism of dual positive - negative diazo duplicating film, the accurate choice of reversing agents, measures for increasing the image density and operation methods for dual exposure from film both sides to yield high density film. a new diazo duplicating film with satisfactory practical characteristics has been thus obtained
文摘:本文討論了異同像混用重氮膠片的成像原理、反轉成像機理及反轉劑選擇原則，提高圖像密度的輔助措施、以及高密度膠片的雙面曝光方法等技術問題，通過綜合運用上述技術措施，研製成功了一種可滿足實用要求的兼有異像和同像兩種復制特性的重膠片新品種。 -
On the basis of expounding the effects of plastic deformation behavior and forming limit on the analysis of sheet metal forming, this paper overviews the research progress on yield criterion, hardening model, forming limit and effects of complex loading paths, and obtains that establishing the test method of complex loading paths according with sheet forming characteristics, verifying the accuracy and applicability of theoretical results, and determining the analytic description and practical criterion under complex loading paths, are main research directions in sheet metal forming
摘要本文在闡述塑性變形行為與成形極限對于解析板料成形過程的作用與意義的基礎上，針對板料屈服準則、強化模型、成形極限及復雜加載路徑的影響規律的研究進展進行了綜述與分析，得出：建立符合實際板料成形特點的復雜加載路徑的實驗方法，驗證理論研究結果的準確程度及適用范圍，確定復雜加載路徑下的解析描述及實用判據，是目前該領域主要的研究方向。
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