充填的炮眼pack: pack2 n. 1.包,捆;行李;驮子。 ...tunnel: n. 隧道;地道;坑道;管道,烟道,风洞;【矿物】石巷, ...gravel packed perforation tunnel: 填满砾石的射孔孔道solidly packed tunnel: 充填密实的炮眼孔道be packed: 挤满了下载手机词典可随时随地查词查翻译