underground coal mining
地下煤矿
underground coal mining中文，underground coal mining的意思，underground coal mining翻译及用法
2025-06-05 23:30 浏览次数 5
underground coal mining 例句
英汉例句
this paper introduces the design method for a kind of the explosion-division intelligent electromagnetic starter specially used in the fans of the underground coal mining district.
介绍了一种煤矿井下对旋式风机专用隔爆型电磁启动器的设计方法。
fundamental principle, applicable geological condition, domestic and oversea development of underground gasification and its advantage compared with traditional underground coal mining are introduced.
介绍了煤炭地下气化的基本原理、应用地质条件、国内外发展概况以及与传统的井工开采煤炭相比的优越性。
generally, underground coal mining starts from one side (dip most) and ends at the other side of the property.
一般来说，地下煤炭开采从一个侧面（浸最开始）和结束在另一侧该财产。
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