yield reduction 中文意思是什麼
yield reduction
解釋
成品率降低-
In my present study, changes in structure and function of all parts of non - leaf organs ( culms, paleae, lemmas, awns, and glumes ) were investigated during a series of developmental stages and in various cultivars. characterization of the culms of lodging - resistant wheat varieties lodging is a potential cause of yield reduction in cereal crops ( crook et al, 1994 )
其中，比較分析了非葉器官葉綠體超微結構的差異，測量了非葉器官的放氧和低溫熒光等生理指標，嘗試從結構與功能相結合的角度，探討非葉器官在提高作物產量中所起的重要作用。 -
Then, a logic computational diagram is constructed for calculating diametral growth by assuming fatigue cyclic softening, namely yield strength reduction as tubing fatigues
再通過合理的假設，建立用於計算直徑增長的計算機邏輯框圖。 -
Overcrowding in turn, leads inevitably to a depression in yield and a reduction in fruit quality.
過密又不可避免地導致產量的降低和水果品質下降。 -
The effects of oxygen supply in the rhizosphere on the eh ( oxidation reduction potential ) of soil and rice yield in planting troughs were studied, with the hybrid rice combination you 7954 as the material
摘要以雜交稻組合優7954為材料，研究根際供氧對稻田土壤的氧化還原電位及水稻產量和物質生產的影響。 -
Flumiclora - pentyl was prepared from p - fluorophenol as starting material via several steps such as chlorination, nitrification, reduction and condensation. the yield of the product was 50 %, and the purity was higher than 97 %
摘要以對氟苯酚為原料，首先與氯氣發生反應，生成2 -氟4 -氯苯酚，再經過硝化、還原、縮合等幾步反應得到氟胺草酯，反應總收率達到50 % ，產品純度大於97 % 。 -
The nitration and reduction of piperonal in different experiment conditions were investigated. thus, the high yield of medical intermediate 6 - aminopiperonal is obtained
以胡椒醛為原料，用不同的實驗條件探索胡椒醛的硝化和還原，從而得出產率高標題化合物的醫藥中間體 -
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。 -
The industrialized manufacturing of this product plays an important role in grain crops drought - fight and abundant harvest ensuring in arid and semiarid region, drought - fight and yield increasing of fruits and vegetables, fresh keeping of flowers, municipal gardening, forest drought - fight, drought degeneration reduction of pasture ecology, and desert vegetation protection, etc
該產品的產業化生產，對乾旱、半乾旱地區糧食作物抗旱保豐收、果樹蔬菜抗旱增產、鮮花花卉保鮮、城市園藝綠化、林樹抗旱、減少牧草生態因旱退化、沙漠植被保護等方面有著重要應用。 -
From the point of view of risk, a index system of risk assessment of winter wheat losses caused by drought was established, including the meanings, token models and estimate methods of risk index of natural water deficiency rate, risk index of yield reduction rate and trending vector coefficient of disaster resistance capability, then on the base of these indices, the comprehensive risk index model of losses caused by drought was established and regionalized. the results indicated : the high risk region included the middle north of shanxi, some of middle of shaanxi and some of hebei in east ; the higher risk region included some of middle of shaanxi, the tangshan region and some of west of hebei ; the moderate risk region included the middle of s
從風險的角度，建立了冬小麥乾旱災損風險評估的指標體系，包括自然水分虧缺率風險指數、減產率風險指數和抗災性能趨勢向量系數的意義、表徵模式和估算技術方法，在此基礎上構建了災損綜合風險模型，並對模型參數區域化，結果表明：冬小麥乾旱災損高風險區在陜西中北部、山西中部的部分地區和河北滄州的部分地區；較高風險區在山西中部的部分地區、河北的唐山地區和西部的部分地區；中風險區在陜西中部、山西南部、河北滄州的大部分地區；低風險區在陜西中南部、河南中北部、北京市、天津市、河北中南部和山東省。 -
A new technology based on molecular logic gates, jointly developed by hp labs and ucla, can store vast amounts of data permanently, yield a 100 billion reduction in power consumption, and put 100 workstations on the size of a grain of sand
一件hp研究室及ucla大學合作發展出來耶分子開關技術，有法度永遠記錄足儕資料、比今阿日耶技術省電一千億倍、一粒沙遐細粒仔囝耶晶體有法度代替今阿日一百臺工作站型電腦耶計算能力。 -
At the same time, using the results of model, the paper provides the optimization irrigation quota and the aim of high yield and high benefit based on the principle that the net benefit of unit water is highestusing the model, we can reasonably distribute the irrigation water for spring - wheat during growing period on the condition of different irrigation quota. through evaluating the comparative yield by the model, the paper gains that the reduction of spring - wheat output is biggest when the irrigation quote is between 100 and 200. the thesis also gains that the corresponding economic irrigation quota is 170 - 120m3 / 667m2. above results can provide scientific reference for irrigation water optimization distribution for crops in the individual irrigation area and the programming of irrigation district
在現有的生產條件下，可以利用模型在不同的灌溉定額下對春小麥生育期灌水進行合理的分配，並可以利用模型進行作物相對產量的評估，得出當灌溉定額在100 m 200范圍內時，春小麥的產量下降幅度較大，最後得出相應的經濟灌溉定額為170 120m ~ 3 667m ~ 2 ，為今後河套灌區各灌域多作物灌溉水量最優分配以及灌區的規劃設計方面提供了科學參考依據。 -
In the system the effects of photoinitiator and monomer concentration on grafting are not distinct, while photo - reduction time, uv irradiated polymerization time and uv light intensity have more effects on grafting yield
實驗發現，光敏劑濃度對接枝率有一定影響；光還原時間增加，接枝率明顯增加；聚合前期接枝率提高較快，反應後期增加緩慢；紫外光照射強度的改變會影響接枝率。 -
The sensitivity indices at different growth stages of the two models differ significantly, which indicates that the time of occurrence of water deficit has a great influence on the reduction of the yield of spring wheat an maize
這一結果可能是由於minhas模型的自變量採用b _ 0和_ i雙重冪指數的數學結構，而能夠較好反映乾旱區作物對水分敏感的特性。 -
Abstract : cetirizine hydrochloride was synthesized from chlorobenzene and benzoyl chloride by the friedel - crafts reaction ， reduction, and chlorination followed by condensation with piperizine, 2 - chloroethanol and sodium chloroacetate in turn in 28. 2 % overall yield based on chlorobenzene
文摘:以氯苯和苯甲酰氯為起始原料，經付克反應、還原、氯化，再分別與哌嗪、氯乙醇、氯乙酸鈉縮合，成鹽制得鹽酸西替利嗪，總收率為28 . 2 % -
Mirtazapine was prepared by a seven - step reaction, namely nucleophilic ring - opening reaction, chlorination, cyclization, uncleophilic substitution, hydrolysis, reduction and cyclization from styrene oxide and n - methylethanolamine as the starting materials, with overall yield of 22. 6 %
摘要以環氧苯乙烯和n -甲基乙醇胺為起始原料，經親核開環、氯代和環合反應得到中間體1 -甲基3 -苯基哌嗪。 -
Sediment yield reduction by soil conservation measure on slopes in the wudinghe river catchment
無定河坡面措施減沙和攔粗泥沙量分析 -
Evaluation of uncertainty of measurement in testing for materials at ambient temperature has been discussed, including tensile strength ; lower yield strength ; proof strength, non - proportional extension ; percentage elongation after fracture and percentage reduction of area
摘要文章介紹了金屬材料室溫拉伸試驗測量結果不確定度的方法，內容包括抗拉強度、下屈服強度、規定非比例延伸強度、斷后伸長率和斷面收縮率等性能指標。 -
The results indicated : the yield reduction rates of a type are < 9 %, 9 % ~ 12 %, 12 % ~ 14 %, 14 % ~ 21 % and > 2 %, which were suitable for the east and some areas of midst in shandong, south near weihe river in shanxi and some areas of midst in hebei ; and b type were < 9 %, 9 % ~ 15 %, 15 % ~ 21 %, 21 % ~ 40 % and > 40 % respectively, which are suitable for other areas
A類不同乾旱年型的實際減產率分別為9 、 9 12 、 12 14 、 14 21和21 ，該類指標適用於山東東部及中部的部分地區、陜西南部渭河一帶、河北中部的部分地區； b類分別為9 、 9 15 、 15 21 、 21 40和40 ，該類指標適用於本區的其它地區。 -
Correlations between actual yields of winter wheat and natural moisture deficiency rates in irrigated areas were established, and because of the differences of sensitivity between them, two types ( a and b ) indices of natural moisture deficiency rates and the corresponding yield reduction rates of actual yield were confirmed
建立了實際產量與自然水分虧缺率的相關關系，根據其間不同的敏感性。確定出兩類（ a 、 b ）不同乾旱年型的自然水分虧缺率對應的實際減產率指標。 -
According to the response yield to water, five types of drought and yield reduction were defined, they are light moderate, heavy, serious heavy and ultra - heavy, and the spatio - temporal distribution of which and the correlativity between them in recent 40 years is analysed
根據產量對水分的響應，定義了五種乾旱年型和減產年型，分別為輕、中、重、嚴重和極端嚴重。
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