Each male ejaculation will contain up to 300 million sperm.
男性每次射精的精液含多达三亿个精子。
It only takes one sperm to fertilize an egg.
只需一个精子就可以使卵受精。
The sperm sample is checked under the microscope before insemination is carried out.
进行受精前用显微镜检查精子样本。
The sperm fuses with the egg to begin the process of fertilization.
精子与卵子结合开始受精过程。
Conception occurs when a single sperm fuses with an egg.
当一个精子和一个卵子结合时受孕就发生了。
A female stores sperm and can determine the sex of each egg she lays by fertilizing it or leaving it unfertilized.
雌性储存精子，可以通过受精或不受精来决定每一个卵细胞的性别。
On this butterfly egg, the lacy pattern marks the micropyle, where sperm enters.
在这种蝴蝶卵上，花边图案标记精子进入的卵孔。
The objective is to evaluate the role of sperm kinematic parameters in the hyperactivation of Guinea pig spermatozoa.
目的是评估精子运动学参数在豚鼠精子过度激活中的作用。
Production of testicular output sperm and spermatic fluid is also larger in polygamous animals.
在一夫多妻的动物中，睾丸输出的精子和精浆的量也较大。
Production of testicular output sperm and spermatic fluid is also larger in polygamous animals.
在一夫多妻的动物中，睾丸输出的精子和精浆的量也较大。
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