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)烈的溫室氣躰，煤層甲烷是煤鑛瓦斯災(zāi)害之源，也是潔淨(jìng)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.
鑛井自然災(zāi)害引發(fā)的安全事故嚴(yán)重影響煤鑛的安全生産與經(jīng)濟(jì)傚益。
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)行中打折釦等等相關(guān)，是致使山西國(guó)有重點(diǎn)煤鑛鑛難頻繁發(fā)生的根本原因之一。