化 工 词 典 内 容 ... 催化剂;catalyst;catalyzer 天然高分子催化剂;natural polymeric catalyzator 合成高分子催化剂;synthetic polymeric catalyzator ...
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昼夜长短之类的自然变化是如何对野生动物产生如此深刻的生理变化及行为变化呢？
How do natural variations such as the changing day length make such profound alterations to physiology and behaviour?
自然界从低级到高级的大多数生物，其生理和行为的功能多呈现日夜交替的节律，即昼夜节律。
In most organisms from lower species to higher ones, various physiological and behavioral functions are expressed rhythmically across day and night.
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