同时，对大竹蛏的催产方法、产卵行为、附着基的投放和胚胎发育、幼虫发生及生长等进行了初步研究。

Moreover, the method of induced reproduction, the spawning behavior, the development of the embryo, the morphological change of the larvae was also studied.

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目的探讨表皮生长因子(EGF)对早期胚胎发育的影响和米非司酮对胚胎生长及EGF的作用。

Objective to investigate the change of epidermal growth factor (EGF) concentration in serum and villi of early pregnant women and its possible effects by mifepristone.

youdao

目的探讨表皮生长因子(EGF)对早期胚胎发育的影响和米非司酮对胚胎生长及EGF的作用。

Objective to investigate the change of epidermal growth factor (EGF) concentration in serum and villi of early pregnant women and its possible effects by mifepristone.

youdao