物候学是研究自然界的植物、动物与环境条件的周期变化之间相互关系的科学。
The phenology is the science studying mutual concern among plant, animal and the periodic change of ambient condition.
这位科学家把植物胚的胚柄与哺乳动物的滋养层做了直接的比较。
The scientist has made a pointed comparison between suspensors of plant embryos and mammalian trophoblasts.
这位科学家把植物胚的胚柄与哺乳动物的滋养层做了直接的比较。
The scientist has made a pointed comparison between suspensors of plant embryos and mammalian trophoblasts.
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