取下针状粮仓，其圆柱状结构也可用于直肠镜检查和活检。

Taking off the pins granary, its cylindraceous structure can be also used for rectoscopy and biopsy.

youdao

取下针状粮仓，其圆柱状结构也可用于直肠镜检查和活检。

Taking off the pins granary, its cylindraceous structure can be also used for rectoscopy and biopsy.

youdao