pay rock
英
美
- 含矿岩
双语例句
- 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。
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