第一次感到胎动的时间经产妇应该发生在17周左右。

First detection of fetal movement should occur at around 17 weeks in a multigravida.

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方法我们进行了一项多中心、随机、双盲试验，纳入先兆子痫危险低的未经产妇女。

Methods We conducted a multicenter, randomized, double-blind trial involving nulliparous women who were at low risk for preeclampsia.

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第一次感到胎动（胎动感）的时间经产妇应该发生在17周左右，初产妇在19周左右。

First detection of fetal movement (quickening) should occur at around 17 weeks in a multigravida and at 19 weeks in a primigravida.

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