繁殖率 breeding potential (rate); rate of reproduction; reproductive rate 繁殖苗圃 propagating nursery .
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That's because very large animals have a slow rate of reproduction, so all you have to do is remove a few young females from the herd, and you can, fairly quickly, significantly reduce the population.
那是因为大型生物的繁殖速度十分缓慢，所以只要除去象群中的几头年轻的母象，它们的数量就会大幅的下降。
The influence of guarding in the nest areas on the successful rate of reproduction;
巢区领域防御对繁殖成功率的影响；
Silkworm, Bpmbyx mori, an organism which can transform protein efficiently, has the advantages of short life circle, high rate of reproduction and mass raising and so on.
家蚕是蛋白质高效转化生物，具有周期短、繁殖率高、后代个体数多、能大量饲养等优点。
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