【Key words】 Gymnocypris przewalskii przewalskii (Kessler)； Spawning stocks； Annuli characteristics； Age； Growth； Reproduction strategies； Gonad development；
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This paper dealed with the annuli characteristics, age, growth, reproduction strategies and histology of the gonad development of spawning stocks for G. przewalskii. The main results are as follows:1.
本文研究了青海湖裸鲤繁殖群体的年轮特征、年龄、生长、繁殖对策和性腺组织学。
参考来源 - 青海湖裸鲤繁殖群体生物学·2,447,543篇论文数据，部分数据来源于NoteExpress
This paper reviewed the strategies of producing male sterility by gene engineering and new ways for the reproduction of male sterility lines use as a female parent in hybrid seed production.
本文综述了利用生物技术培育转基因雄性不育的多种策略，以及繁育用作大田配制杂交种的母本雄性不育系的新方法；
We found out the basic reproduction number and compared the efficiency of the three strategies for controlling the rabies: culling, vaccination, culling and vaccination.
通过寻找”基本再生数”对比了捕杀、免疫、捕杀和免疫相结合三种不同策略在控制狂犬病传播中的有效性。
The cognitive learning strategies of interpretation learners are employed in all the three stages of interpretation: preparation, comprehension and reproduction.
口译学习者的认知学习策略主要表现在口译活动的三个阶段：译前准备阶段、理解阶段和重述阶段。
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