煤矿设备选型网 关键词： 煤矿开采；高档普采；机道顶板管理 [gap=344]Key words: coalmining; high-grade conventionalmining;management of roof over loft
基于10个网页-相关网页
coalmining industry 煤炭开采业
deep coalmining 煤矿深部开采
modern coalmining 现代煤矿生产
coalmining safety facility 煤矿安全设施
page feature on coalmining 有关采煤的头版特写
So the nature of the work – banking or coalmining – may be a factor.
因此工作的性质，例如银行业或采煤业，也许是影响因素之一。
Coalmining operations in the Australian state were severely hampered.
煤矿在澳大利亚各州的操作受到严重阻碍。
We will accelerate the trial to transform the economies of cities that are dependent on resources that are now depleted and efforts to control sinkholes in coalmining areas.
加快资源枯竭型城市经济转型试点和采煤沉陷区治理。
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