mionite

例句：

1. 1. The mine has been closed for safety reasons.
   出于安全原因，该矿已经关闭。
2. 2.The slag is being used as a building material.
   矿渣正在被用作建筑材料。
3. 3. The slag rock is a byproduct of the mining process.
   矿渣岩是采矿过程的副产品。