metal mines

• 金属矿山

metal mines的用法和样例：

例句

1. Prospecting metal mine goafs by Rayleigh wave method is introduced.
   介绍用瑞雷波法检测金属矿山采空区。
2. Research on continuous ore drawing and haulage equipment for underground metal mines has widely been done in main foreign countries with mining industry.
   国外主要矿业国家对地下金属矿山连续出矿运矿设备进行了深入的研究。