coal mine development

• 煤炭开发

coal mine development的用法和样例：

例句

1. 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。
2. 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。