the coal engineering project 煤炭工程项目
Clean Coal Engineering Research Center 煤炭工业洁净煤工程技术研究中心
Coal Communication Network Engineering 煤矿通信网络工程
coal chemical engineering 煤化学工程
Oil, gas and coal would remain the fuels of choice - and there was plenty of oil left, he told the Royal Academy of Engineering last week.
上周，他在英国皇家工程学会发表演说称，石油、天然气、煤仍然是备选能源，世界上仍然有大量石油可用。
Some problems of bore grouting engineering for coal gob area are discussed in this paper.
文章对煤矿采空区治理工程中的钻孔注浆问题进行了讨论。
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