含煤的

例句：

1. 1. The mine produces a significant amount of coal every year.
   这个煤矿每年生产大量的煤炭。
2. 2. Coal is a major source of energy for many industrial processes.
   煤炭是许多工业过程的主要能源来源。
3. 3.The coal mine has been closed down due to safety concerns.
   由于安全担忧，这个煤矿已经关闭了。