泥煤

例句：

1. 1. The coal mine is located inthe remote mountainous area.
   煤矿位于偏远的山区。
2. 2. The coal mine has been closeddue to safety concerns.
   由于安全担忧，煤矿已经关闭。
3. 3. Coal mining is adangerous and environmentally damaging industry.
   煤矿开采是一项危险且对环境有害的行业。