The testis at spermatogonium phase is small and transparent, and the spermatogenetic cells in seminiferous tubule primarily consist of spermatogonia;
精原细
期，精巢小，透明乳白色，生精小管内的生殖细以精原细
；
The testis at spermatogonium phase is small and transparent, and the spermatogenetic cells in seminiferous tubule primarily consist of spermatogonia;
精原细期，精巢小，透明乳白色，生精小管内的生殖细以精原细；
The testis at spermatid phase develops continually, and is deep in color, and the spermatogenetic cells in seminiferous tubule are primarily composed of spermatids.
精细期，精巢体积继续增大，颜色加深，生精小管内的生殖细以精细；
声明：以上
、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
