露天采石

例句：

1. 1. The construction company is currently engaged in the open-pit mining of coal.
   这家建筑公司目前正在进行露天煤矿的开采。
2. 2. The mine manager has decided to switch to more environmentally friendly methods for open-pit mining.
   矿场经理决定采用更环保的方法来替代露天采矿。
3. 3. The open-pit mining process involves removing the top layer of earth and rock to expose theunderlying ore.
   露天采矿过程包括移除地表层土壤和岩石，以露出下面的矿石。