英语单词 红联
红联英语单词
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crown-rump-length

crown-rump-length什么意思,crown-rump-length翻译

基本解释

网络: 顶臀长度;头臀长;冠臀长

例句

  • The crown-rump length becomes less accurate after 12 weeks in determining gestational age because the fetus begins to curve.

    孕12周后,因胎儿身体屈曲,以胎儿顶臀径推算孕龄已不够准确。

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