discharging cartridge in mining operation的意思|示意
美 / /
英 / /
采矿作业中卸药
discharging cartridge in mining operation的网络常见释义
矿山排漏弹 水堵塞袋 water stemming bag 矿山排漏弹 discharging cartridge in mining operation；mining rocket 电力线路爆炸压接弹 explosive pressing cartridge for connecting power lines ..