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单词 population dynamic
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" What this does is help the biologists study the behavior of seals, and also population dynamics, " Dooper said.

“这有助于生物学家研究海豹的行为以及种群动态。”

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Particularly, the infusion of large amounts of nitrogen fertilizers caused disruption to this microbial activity and changed the population dynamics.

尤其是氮肥的大量使用导致了微生物活动的紊乱,改变了微生物种群的动态。

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