conditions of ore-controling

• 矿床

conditions of ore-controling的用法和样例：

例句

1. The country is short of known deposits of coal.
   这个国家缺少已知的煤矿矿床。
2. The deposits of REE are hosted by aegirine-granite.
   霓石碱性花岗岩是稀土成矿的直接母岩，矿床与之紧密共生。