Gas explosion accidents on the coalface of mines are studied, using minimal cut set, minimal radius set and structural importance.

应用事故树分析中的最小割集、最小径集和结构重要度，对矿井采煤工作面瓦斯爆炸事故进行了研究。

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The importance of fuzzy distance can be obtained by extending the concept of structural importance of bottom event from probability space to fuzzy set, in the light of the concept of fuzzy distance.

利用模糊距离概念，将底事件结构重要度概念从概率空间推广到模糊集中，得到模糊距离重要度。

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The faults is common geologic structural phenomenon in faulted basin, therefore, studying the rule of faults is of great importance.

断裂是断陷盆地的一种普遍地质构造现象，因此，研究断裂的规律性十分重要。

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Most of the talk about growth ends up underlining the importance of structural reforms, like freeing up the labour markets, making it easier to hire and fire.

BBC: European austerity: More pain than gain?