据初步调查，事故系矿井下电缆短路引发火灾。
An initial investigation indicates the fire was caused by a short circuit in underground cables.
调查人员说，由于断电，矿井内的通风设备停止运行，矿井内瓦斯积聚。
Investigators say gas accumulated during a power outage that shut down the mine's ventilation system.
据调查，当前矿井设计过程中，遇到该类求解问题时，多是通过作图法粗略求解。
According to the investigation, during the current mine designing, when meet such problems mostly solve it by the method of making diagram.
继一次地质调查之后，这些矿井已被关闭了。
The mines had been closed down following a geological survey.
根据调查显示，大部分的煤矿事故都与矿井通风系统不完善有直接的关系。
According to a survey, most of the coalmine accidents are caused by imperfect mine ventilation.
水平构造应力对矿井巷道和采场布置产生较大影响，与工程地质调查和变形调查结果相吻合。
The horizontal tectonic stress has quite strong influence on the layout of entries and mining faces.
本文报道了烟煤煤矿井下工人22年追踪观察的职业流行病学调查研究结果。
The paper reported the epidemiological results of 22-year follow-up study of workers exposed to dust at bituminous coal mines.
本文报道了烟煤煤矿井下工人22年追踪观察的职业流行病学调查研究结果。
The paper reported the epidemiological results of 22-year follow-up study of workers exposed to dust at bituminous coal mines.
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