名词
中文翻译：含煤系列
同义词：
['coal-bearing', 'coal-bearing formations']
例句：
-
1. The coal-bearingformations are rich in minerals and resources.
含煤层富含矿物和资源。
-
2. Thecoal-bearing formations have beenmined for centuries.
含煤层已经开采了几个世纪了。
-
3. The coal-bearing formations are a major source ofenergy for power generation.
含煤层是发电的主要能源来源。