yielding structure造句

• Effects of the different irrigation - fertilization optimization models on grain yield , yield structure and water and nitrogen use efficiency of winter wheat
  不同水氮优化组合模式对冬小麦产量形成及水氮资源利用效率的影响
• According to the breeding practice , it puts forward the model of wheat yield structure , the characteristics of dry - land varieties and the objectives to breed new varieties with drought resistance , cold resistance , disease - resistance and high quality
  结合小麦育种实践，提出小麦产量结构模式，旱地品种特征特性和抗旱、抗寒、抗病、优质育种目标。
• The results showed that yield structure of the middling population treatment were the most excellent as a whole and its grain yield was the highest among the three treatments , while the dynamic of tiller and its formation into panicles , root - bleeding intensity / spikeltes , lai and its structure , dry matter accumulation and transportation were the most reasonable too
  结果表明，中等群体处理的产量结构最优，在三处理中稻谷产量最高，其茎蘖消长与成穗、颖花伤流量、叶面积系数与结构以及干物质积累与转运总体上最为合理。
• The study of economic yield structure of crude oil is based on the facts that there are differences in crude oil qualities and in the methods or ways or processes to develop or explore the crude oil . by applying the theories of marginal cost and marginal profit and according to the market prices of crude oil , we determine corresponding yields of different crude oils , which make the total profit maximum
  原油经济产量结构研究是在油田存在不同油品、不同开发方式的情况下，运用边际成本和边际效益理论，根据不同的原油市场价格确定油田的效益产量，从而获得最佳原油产量结构，达到获取最大经济效益的目的。
• The fundamental thought - way to determine the optimal yield structure of crude oil can be listed as follows : by doing the analyses of corresponding costs and making prediction , we can obtain the basic economic rules and the states of the change of economic profit , by which we can determine the optimal yield structure of crude oil
  原油最佳产量结构研究的基本思路是通过成本分析与预测，来探讨油田开发的基本经济规律和经济效益的变化情况，探讨原油产量在各种情况下的最优确定方法。