mine calamity

常見(jiàn)例句

The coal seam methane is a source of coal mine gas calamity, and also a clear energy resources.
甲烷是強(qiáng)烈的溫室氣體，煤層甲烷是煤礦瓦斯災(zāi)害之源，也是潔凈的能源。
Safety accidents caused by coal-mine natural calamity has seriously negative influence on the safety production and economic results of coal mine.
礦井自然災(zāi)害引發(fā)的安全事故嚴(yán)重影響煤礦的安全生產(chǎn)與經(jīng)濟(jì)效益。
Do not or discount execute the command and etc related is one of the fundamental reasons to cause the frequent mine calamity in the important State-Owned Coal Mine in Shanxi Province.
有令不行或執(zhí)行中打折扣等等相關(guān)，是致使山西國(guó)有重點(diǎn)煤礦礦難頻繁發(fā)生的根本原因之一。