含无烟煤的

例句：

1. 1.The anthracite mine is located in the heart of the region.
   这个无烟煤矿位于该地区的中心。
2. 2. The anthracite coal is highly sought after for its high quality.
   这种无烟煤因其高品质而备受追捧。
3. 3. The anthracite coal is mined from deep within the earth's crust.
   这种无烟煤是从地球地壳深处开采的。