精巢 testis 动物体中形成精子的器官。特别是哺乳类，其形态多数呈球状或近似球状，故又称睾丸。睾丸属雄性内生殖器官。
misc. testis (pl. testes)
The testis can be divided into two parts. The anterior part is spermatogenic part where spermatogenesis is proceeding.
乌塘鳃 鱼精巢分为两部分，前段为生精部，线形。
参考来源 - 乌塘鳢鱼精巢周期发育和精子发生的研究These genes will be highly expressed mostly in spermary and ovary which have ability to split and multiply in silkworm, but will be lowly expressed in silk gland which has been highly differentiated.
这些基因大多在家蚕具有分裂增殖能力的幼虫精巢、卵巢中高量表达，而在处于高度分化状态的丝腺组织中低量表达。
参考来源 - 家蚕丝腺细胞系BmSGA little fat remained in the testis, and the testis was pink because of the bulk of blood vessels.
精巢还残存着一些脂肪，上面分布大量血管使整个精巢呈粉红色，此时表面可见精子，输精管变粗，内已有少量的精子。
参考来源 - 施氏鲟的性腺发育及人工性别控制研究The cross section of ovary was strip-shaped, and that of spermary was ellipse.
卵巢的横切面呈长条形，精巢的横切面呈椭圆形。
参考来源 - 鲢早期性分化与性转及两个雌核发育系近交F·2,447,543篇论文数据，部分数据来源于NoteExpress
研究淡水鱼精巢中的核蛋白和鱼精蛋白的提取工艺。
The extraction process of nucleoprotein and protamine from freshwater fish spermary was studied.
卵巢的横切面呈长条形，精巢的横切面呈椭圆形。
The cross section of ovary was strip-shaped, and that of spermary was ellipse.
佚名摘要目的：研究鲤鱼精巢DNA对自由基的清除作用。
To investigate whether DNA from carp spermary scavenges free radicals.
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