Many scientists agree that the domestic dog displays more morphological variation than any other known species, thanks to selective breeding by humans.
许多科学家都认为，国内的狗更显示形态比任何其他已知的物种变异，人类有选择育种的感谢。
The researches about the classification and identification of their species and varieties have provided an early, subservient and selective index for breeding work.
其种间或品种间的分类鉴定和亲缘关系的研究为育种工作提供了一个早期的、辅助的、选择性的指标。
Pushed to the brink of survival, the Kaminoans perfected cloning technology and practiced selective breeding to keep their species viable.
被逼到赶尽杀绝边缘的卡米诺人完善克隆技术，实行选择育种，从而保证种族的繁衍。
There were higher selective in light gazing because of the sufficient food supply and less selective in heavy grazing due to less plant species.
轻度放牧区食物充足，绵羊的选择性采食行为较明显，重度放牧区植物稀疏，食物匮乏；
Rice medium was used to identify the species groups of genus of Fusarium fungi selected by Komada or No. 1 selective culture medium from soil.
选择镰刀菌用驹田或植选1号培养基，在米饭培养基上划分镰刀菌种群，用试管法或盆栽作致病性测定，以检测土壤中棉花枯萎病致病菌。
The work out the plan of the selective dissolution of individual polymeric species from a plastic mixture.
结果表明，实验所选用的塑料在有机溶剂中的溶解性能和溶解条件不同；
The aim is to lay a theoretical foundation for the selective breeding of new poplar species and harmless control of poplar clearwing moth in the future.
本文对未来杨树新品种选育及白杨透翅蛾的无公害防治提供了一定的理论基础。
The aim is to lay a theoretical foundation for the selective breeding of new poplar species and harmless control of poplar clearwing moth in the future.
本文对未来杨树新品种选育及白杨透翅蛾的无公害防治提供了一定的理论基础。
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