After about 36 weeks to determine how much amniotic fluid and placental function.

怀孕晚期大约36周以后，以确定羊水多少以及胎盘的功能。

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After about 36 weeks to determine how much amniotic fluid and placental function.

怀孕晚期大约36周以后，以确定羊水多少以及胎盘的功能。

youdao