Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/96fb62469857f1b36b94fed5b48e9de0.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.com/index.php on line 55 placental membrane例句_placental membrane英汉例句_placental membrane双解例句_流逝汉英词典
Chorion: the outer membrane enclosing the embryo in reptiles birds and mammals. in placental mammals it contributes to the development of the placenta. 绒毛膜：在爬行类动物，鸟类及哺乳类动物中包含胚胎的外膜，在有胎盘哺乳动物中与胎盘的发育有关。