提示：点击例句中的单词，就可以看到词义解释

Two disused mines are being reopened in california and australia .

美国加州和澳大利亚的两个废弃稀土矿正重新开工。

Anglo 's vast mines are already among the most efficient .

而anglo公司的大批矿井都是优秀的。

So are hydrogen atoms unavoidable space mines ?

那么氢原子是不可避免的地雷吗？

The dolphins detected and marked several mines , which were removed by navy bomb-disposal teams .

海豚探测并指出了几个水雷，这些水雷由海军的拆弹小组排除了。

The agency 's investigators visited gypsum mines and drywall facilities in china in august .

该机构的调查人员今年8月考察了中国的石膏矿和干墙生产设施。