contact metamorphic rock

• 接触变质岩

contact metamorphic rock的用法和样例：

例句

1. Having analysized the degree of crystallization of andalusite, it is believed that the anthracite is a low-grade thermal metamorphic rock.
   从红柱石的结晶程度分析，这种无烟煤是一种低级热接触变质岩。