Mr. Cheng said mine safety was increasingly challenging for China and that many other countries had given up on the excavation of high-risk mines amid energy reforms.
程先生说在中国，煤矿安全问题越来越突出，因为许多国家由于能源革新，已经放弃开采高风险煤矿。
This paper introduced several views of fulfilling excavation plan, which can be a reference for mine plan and field management people.
本文介绍了完成采掘计划的几点意见，可供从事矿山计划管理及现场管理人员等参考。
An excavation for the removal of mineral deposits; a mine.
为矿产的开发而进行的挖掘；矿。
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