English translation for "煤矿顶板分级"

classification of coal mining roof

Related Translations:

外顶板:  roof sheet

煤矿部:  c.m.b. = coal mines boardcmdcoal mines department

煤矿爆破:  coal mine blasting

开采煤矿:  mine coal

煤矿安全:  coal mine safety

煤矿区:  coal district

煤矿瓦斯:  coal-mine gas

自动化煤矿:  automated mine

安全灯煤矿:  closed lamp colliery

煤矿废物:  colliery wastewaste from coal mine

Similar Words：

"煤矿测量" English translation, "煤矿床" English translation, "煤矿的工作面" English translation, "煤矿地质" English translation, "煤矿地质学" English translation, "煤矿非机采型" English translation, "煤矿肺" English translation, "煤矿废料" English translation, "煤矿废水" English translation, "煤矿废物" English translation