coal explore是什么意思 coal explore怎么读
coal explore的用法和样例
- In coal mines,coal exploitation and environmental control shall be sychronized.
煤矿建设应当坚持煤炭开发与环境治理同步进行。 - China with a history of six or seven thousand years of development of coal utilization is one of those countries that first recognised and utilized coal.
摘要中国是世界上最早认识和利用煤炭的国家之一，有长达六七千年的煤炭开发利用史。
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