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perforatorium [ˌpə:fəreit'ɔriəm] n
gen. 精子顶体
anim.husb. 穿卵器精子头部顶端的特殊突出结构，位于顶体的主体部分
life.sc. 顶体
nurs. 穿孔器
repr.biol. 顶突; 穿卵器

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