The ovum develops only in the female, and the sperm cell develops only in the male.
卵细胞仅在女性体内产生, 而精子细胞则仅在男性体内制造.
来源:网络文摘精选In vitro, the acrosome reaction of sperm does not influence the ovum fertilization rate.
在体外, 精子顶体反应率的高低与卵子受精率没有明显的相关性.
来源:网络文摘精选A tablespoon of human semen contains enough sperm to fertilize every woman in North America.
一小勺的精液里含有的精子足够让每一个北美的女人都怀上孩子.
来源:网络文摘精选Fertilization, the process in which the man's sperm joins the egg, takes place in the tube.
受精是男性精子与卵子在输卵管结合的过程.
来源:网络文摘精选Sperm counts went down to a level infertile and came back up on their own.
精子计数下降到不孕水平后,又可以自主恢复正常.
来源:网络文摘精选Mature eggs are placed in an IVF culture an incubator to await fertilization by the sperm.
将成熟的卵子放在体外受精培养液里,放进培养箱等候精子并受精.
来源:网络文摘精选Its purpose is to liquefy the semen to release sperm, freeing them to fertilize an egg.
它的作用是溶解精液释放精子, 使其易于和卵子受精.
来源:网络文摘精选Clomiphene can reduce the quantity and wateriness of cervical mucus, making it a barrier for sperm.
克罗米酚可能会降低宫颈粘液的质量和水分, 使其阻隔精子.
来源:网络文摘精选CONCLUSION: Aging influences spermatogenesis in testes and sperm maturation in epididymides.
结论: 衰老影响小鼠精子功能及附睾精子成熟过程.
来源:网络文摘精选In other words, males squirt sperm over eggs that have already been laid.
也就是说, 雄鱼向已产出体外的卵子射精.
来源:网络文摘精选
简答网 · 英语词汇

简答网 · 英语词汇

简答网 · 英语词汇

简答网 · 英语词汇

简答网 · 英语词汇

简答网 · 英语词汇