Hydromucker
液压装岩机
🗣️ 情景例句
May I ask for a morning call tomorrow morning?
明天早上请叫我起床好吗？
Be swift to hear, slow to speak.
多听少说。
If explosives are used, vibrations will cause the roof of the mine to collapse.
如果用炸药爆破，震动会引起矿顶塌落。