mine calamity

基本解释

The coal seam methane is a source of coal mine gas calamity, and also a clear energy resources.
甲烷是强烈的温室气体，煤层甲烷是煤矿瓦斯灾害之源，也是洁净的能源。
Safety accidents caused by coal-mine natural calamity has seriously negative influence on the safety production and economic results of coal mine.
矿井自然灾害引发的安全事故严重影响煤矿的安全生产与经济效益。
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.
有令不行或执行中打折扣等等相关，是致使山西国有重点煤矿矿难频繁发生的根本原因之一。

矿难
With the aim to find out the reasons caused mine calamity and preventive actions, the text applies the institutional analysis method to the discussion from the view of public management, law and administration supervisions, and economic transition.
为找出矿难形成的原因和防范的措施,本文从公共管理、法律和行政监督、经济转型期的矿难三个角度,用制度性分析的方法对此进行了一些探讨。