bore porosityboring porosityburrow porosity虫: insect; worm掘: dig孔隙: small opening; hole; pore; a ...掘孔机: hole-digger水平掘孔机: horizontal thrust borer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:虫掘孔隙，即可在微信中查询翻译
