... 族群变动 population fluctuation 族群形成population formation 族群遗传学 population genetics ...
双语例句
1
A field experiment was conducted to study effects of root pruning at returning green stage on population structure, soil water and yield formation of winter wheat.
通过田间试验研究了返青期不同程度根修剪处理对冬小麦群体结构、土壤水分及产量形成的影响。
2
Ganxin688 was studied for its characteristics of nitrogen absorbability and their impact on the population development and yield formation.
通过不同氮肥运筹方式，探讨淦鑫688的吸氮特性及其对群体发育和产量形成的影响。
3
This article makes analysis of the factor of population in Qinghai-Tibet Plateau, and the mechanism of the formation of population and environment problems in this area.