yield class 中文意思是什麼
yield class
解釋
收獲級-
In recent years, the water - saving and control irrigation technique of rice has diverted from plot experimental and demonstration to lare scale. and has got remarkable economic and social benefits. amed at the characteristics of this irrigation area, optimal selection for water - saving techniques of rice, deciding the amout of leaching water and irrigation modles, investigating the adaptability of the water - saving and control irrigation technique in saline land. studying the increase in production mechanism of the technique are important to extend the technique, to better and develop saline land as well as slick spots. according to the results of field experiments, optimization study was conducted on the water - saving irrigation technique of rice in saline land, the effects of different water - saving irrigation techniques on the physiological indexes and yield of rice were systematically analyzed. by using mutiplepurpose fuzzy optimization method, better. water - saving irrigation technique was selector out, that is. the control irrigation technique in rice. the mechanism of it was analyzed from the aspect of the physiological and ecological saving water of rice to provide the implemental process and technical point ; throgh the quantitive analysis and comparision on control irrigation and control class ( flood irrigation ), high production and quality mechanism of the technique was analyzed in terms of physiology indexes of rice, the variation of soil moisture, the pest resistance and the lodge resistance, the change of soil temperature in paddy fields. the yield constitutive factors, the quality of rice and so on. in saline land. control irrigation and intermittent leaching modles were adopted to validate the adaptability of the technique in irrigation of rice in saline land, to analyze rice ' s physiological - ecological indexes and the change of soil salt content under the conditions of control irrigation leaching of rice and and to provide control irrigation and combined modle of intermittent leaching to adapt to different conditions
本文從試驗及試驗資料入手，取得以下主要成果和結論：對鹽堿地水稻節水灌溉技術進行優化研究，系統地分析了不同節水灌溉技術對水稻生理指標及產量的影響，採用了多目標模糊優化的方法，對灌水技術進行綜合評判，優選了節水灌溉技術，論證該地區宜採用水稻控制灌溉技術；闡述控灌技術通過調節和控制水稻的需水規律，降低水稻高產情況下的無效水量消耗，從水稻生理、生態節水兩方面分析了控灌技術節水機理，針對性地總結出水稻各生育期實施節水控灌技術的步驟及技術要點；通過控灌與淹灌的定量對照比較，從根系、莖蘗、冠層葉片及綠葉動態到株高，土壤水分變化，抗病蟲害、抗倒伏能力，稻田土溫變化，產量構成因素及稻米品質等諸多方面進行動態比較，分析控灌技術高產優質機理；在鹽堿稻地採用控制灌溉+間歇淋洗模式，跟蹤測試田間水鹽變化狀況，驗證控制灌溉技術在鹽堿地區水稻灌溉中應用的適應性，通過分析水稻控制灌溉淋洗條件下水稻生理生態指標，提出優化控制灌溉+間歇淋洗組合模式，為進一步在高礦化度地區試驗水稻控灌技術奠定基礎。 -
A class object can be called ( see above ) to yield a class instance ( see below )
一個類對象可以創建（見上） ，這樣會產生一個類實例（下述） -
The company usage sophisticated living creature in world engineering technique and top - class raw material produce " grain seedling " the brand series of to plant to protect the product, covering the agriculture fertilizer, disinfectant, insecticide, leaf to face fatty several specieses of etc., having the farm crop of promote healthy, strengthen the farm crop immunity dint, raise the farm crop yield and improve the miraculous effect of the fruit quality, can let farmer acquired the biggest income with the lowest cost in the most short time.
公司運用世界尖端生物工程技術和頂級原料生產出的「禾苗」牌系列植保產品，涵蓋農業肥料殺菌劑殺蟲劑葉面肥等多個品種，具有促進作物健康增強作物免疫力提高作物產量改善果實品質的神奇功效，能讓農民在最短的時間內以最低的成本獲得最大的收益。 -
The class b notes cater for investors who can accept a higher prepayment exposure and subordination in return for a higher investment yield
這組別債券因而適合可接受提早償還風險及次級信貸以獲得較高投資收益的投資者。 -
16032 evaluation units of the potential land productivity were overlaid out. by using the mechamism methodology and relative computing models, yaan city ' s land productive potentiality was computed according to synthetic index of land productivity evaluation that was taken as soil effective coefficient. result of research indicated that : ( a ) siol effective coefficient changed from 0. 3047 to 0. 8550, respectively with medium - low yield farmland of 71. 28 percent. ( b ) the division of climate productivibilty is situated on the third degree and fourth class western area in east of chian
4 、雅安市土地自然生產潛力與目前的實際生產水平比較，其增產潛力平均為23 . 53 ，說明農業技術和管理措施等的增產潛力較大；將目前土地的實際生產水平與15年前比較，土地的實際生產水平逐年上升，年均遞增0 . 64 ，顯然，土地的自然生產潛力是可以通過各種農技措施來挖掘的。 -
If a third party were to extend this class, then the build engine will yield an undesired behavior
如果第三方要擴展此類，則生成引擎將產生意外的行為。 -
But, the per unit area yield lies in middle and inferior class in our country
但是，在國內看來，棉花單產處于中等偏下水平。 -
Research indicates : the per unit area yield and quality of henan province lies in middle and superior class
研究表明：河南棉花在單產水平和質量上均處于國際中上等水平。
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