apyrene sperm的用法和样例：
例句
- After the eupyrene and apyrene sperm were released from testis, their ultrastructure changed distinctly in the sperm-modified vesicle.
棉铃虫真核和无核精子束从精巢中排出后，其细微结构在修精囊中发生了显著的变化。 - Moreover, the apyrene sperm bundle dissolved to single sperm and some substances surrounded the surface of each apyrene sperm.
无核精子束从精巢中排出后，在修精囊中己分散为单个的精子，其质膜表面也逐渐附着一些细胞外物质。
