如果卵子排出后约24小时内未能受精就将退化.
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The endometrium prepares to receive a fertilized egg by thickening and producing secretions.
子宫内膜增厚和制造分泌物是为孕卵着床而准备.
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However, the polar nuclei might develop the normal endosperm as long as they had been fertilized.
但是, 其极核必需经过受精过程才能发育为胚乳.
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Crossbred boar is the offspring of purebred boar cross-fertilized with Commercial Pigs.
野家杂交猪是含有一定野猪血统的杂交猪.
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A bluefin tuna can release 10 million fertilized eggs in a spawning season.
在繁殖季节,一条蓝鳍金枪鱼会产出一千万只受精卵.
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Ammonia gas released by fertilized crop land cropland is a cause of air pollution.
氨气是施肥后的农田释放出来的一种空气污染源.
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In human reproduction, one female egg is usually fertilized by one sperm.
在人体生殖过程中, 一个精子使一个卵子受精.
《简明英汉词典》
