The testis at spermatogonium phase is small and transparent, and the spermatogenetic cells in seminiferous tubule primarily consist of spermatogonia;
精
细胞期，精巢小，透
乳白色，
精小管内
细胞
精细胞为主；
细胞The testis at spermatogonium phase is small and transparent, and the spermatogenetic cells in seminiferous tubule primarily consist of spermatogonia;
精细胞期，精巢小，透乳白色，精小管内细胞精细胞为主；
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