短語(yǔ)詞組短語(yǔ)PVC blasting cartridge PVC 爆破筒blasting cartridge load 爆炸荷載cutting seam cartridge blasting 切縫葯包爆破slotted cartridge blasting 切縫葯包爆破joint -cutting cartridge blasting method 切縫葯包爆破法 返回 blasting cartridge