be impregnated
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受孕率
pregnancy rate
人工受孕
artificial insemination/impregnation
试管受孕
test-tube conception
体外受精是一种常用的帮助夫妇受孕的技术。
In vitro fertilization is a common technique used to help couples conceive.
某些物种中,是外部受孕;另一些物种,包括大部分陆生动物,是内部受孕。
In some species fertilization is external; in others (including most terrestrial animals) it takes place internally.
欲通过IVF(体外受精)而受孕的妇女痛苦地发现,时间是多么的重要的。
Women who have tried to conceive using in vitro fertilization (IVF) methods are painfully aware that timing is of the essence.
健康的精子增加了成功受孕的机会。
Healthy spermatozoa increase the chances of successful conception.
代孕是无法自然受孕的夫妇的一个选择。
Surrogacy is an option for couples who cannot conceive naturally.
受孕
受孕即受精,指精子和卵子结合。 受孕过程为:性交时,男方将精液射入女方的阴道内,精子依靠尾部摆动向子宫游弋,然后再进入输卵管。男性每次射出的精液中含有数亿个精子,但极大部分精子在阴道酸性环境中失去活力或死亡,只有极少数精子能够克服重重阻力到达输卵管。