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，透明乳白色，生精小
生殖细胞
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，透明乳白色，生精小生殖细胞精细胞为主；
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