punching hole diameter冲孔: punching; punched hole; pier ...直径: diameter; diam最小冲孔直径: minimum diameter of piercing拔杆孔直径: diameter of guide hole井孔直径: well diameter下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:冲孔直径,即可在微信中查询翻译