pay rock的用法和样例:
例句
- The Pre-cambrian alumino-siliceous slate is the host rock of antimony deposit inHunan.
湖南前寒武系的硅铝质板岩是锑矿主要赋矿岩性。 - The stability of ore and rock in Lianjiang Silver Mine is very poor so that an overhand slice and drift mining with cemented tailings filling was used for mining.
廉江银矿的矿岩稳固性很差,采用上向进路尾砂胶结充填采矿法。