coal mining industry company

基本解释

Chairman of Hidili Industry International Development, a coke and raw coal mining company.
恒鼎实业国际发展有限公司的董事长，主营焦炭和原煤矿业务。
Mine in Kailuan Coal Mine Company is not the first in China but it takes an important position in the history of China's coal mining and modern industry.
今天开滦唐山矿的1号井不是“中国煤矿第一井”，也不是中国近代煤矿第一井。但它在中国煤炭发展史和中国近代工业发展史上有非常重要的地位。
Some experiences were introduced on the use of the puppet downward quadrilateral pliant shield support mining in Xiancha Coal Industry Company in more than a year.
介绍仙槎煤业公司一年多时间使用伪俯斜四边形柔性掩护支架采煤法的体会。