中小煤矿企业；重大生产事故；线性概率模型；安全生产限额；
Small and medium coal mining enterprise; major safety accident; Linear probability model; Critical production scope;
分析了中小煤矿提高煤炭资源回收率的前提保障条件，提出了复采煤炭资源的途径和措施。
This paper analyzes the preconditions for small and medium-sized coal mines to increase coal recovery rate, and puts forward some paths and measures for the second mining of the coal resources.
主要针对中小型煤矿的离心式主通风机改造进行了理论探索、方法分析和实际应用。
The probe of theory analysis of scheme and application of practice are made on centrifugal main fan used in mid or small coal mine in this paper.
为解决我国中小型煤矿存在的安全隐患问题，及时准确地检测瓦斯含量，提出了基于单片机的智能煤矿瓦斯监控系统；
According to question existing in China's small and medium-sized coal mine, an intelligent monitoring design based on Single Chip Microcomputer is proposed.
为解决我国中小型煤矿存在的安全隐患问题，及时准确地检测瓦斯含量，提出了基于单片机的智能煤矿瓦斯监控系统；
According to question existing in China's small and medium-sized coal mine, an intelligent monitoring design based on Single Chip Microcomputer is proposed.
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