Weld identification single hole punch. 鉴别焊缝的单孔冲压机。
BHID with two tubes in one hole can be used as the primitive method in CSDH in adolescent with its merits on quickly-recuperation and slightly-traumatic. 单孔钻颅置双管冲洗引流术创伤小，疗效明确，恢复快，可作为青年人慢性硬膜下血肿的首选治疗。
dynamite quantity per hole怎么读 dynamite quantity per hole是什么意思
