• At the same time, the high temperature of blasting gas can causing gas and coal dust explosion.

    同时气体温度较高容易引起瓦斯煤尘爆炸

    youdao

  • Objective: To find a method for promoting healing of facial burn wounds caused by coal dust explosion.

    目的寻求促进面部煤尘燃爆创面愈合治疗方法

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  • The frequent gas and coal dust explosion accidents in coal mine is a big threat to the life and property.

    我国煤矿频繁发生瓦斯、煤尘爆炸事故给人民的生命和财产安全带来了严重的威胁。

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  • Stray current in coal mine underground is an important factor caused gas and coal dust explosion, which seriously threatened safety production in mines.

    煤矿井下杂散电流引起瓦斯煤尘爆炸一个重要起因,严重威胁到煤矿安全生产

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  • The mine electric leakage can not only cause the electric shock of the people but also some serious accidents such as the fire hazard, coal dust explosion, and gas explosion, etc.

    煤矿井下漏电不仅引起人身触电酿成火灾煤尘瓦斯爆炸恶性事故。

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  • According to national statistics, coal mines with coal dust explosion risks account for 60% of all coal mines, among which coal mines with explosion index over 45% accounting for 16.3%.

    统计全国煤矿具有煤尘爆炸危险矿井煤矿总数60%以上,煤尘爆炸指数45%以上的煤矿16.3%。

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  • Expansion joints located in ducts conveying coal dust shall be designed to withstand a vented explosion.

    位于传输煤炭粉尘风管伸缩接头(膨胀节)的设计应当能够承受排气爆炸。

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  • There are usually accidents in coal mines, which are mainly gas explosion and dust explosion.

    煤矿开采比较容易出事故煤矿事故又主要瓦斯爆炸煤尘爆炸。

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  • The relations between the maximum explosion pressure, the maximum quantity of draw-off heat and coal dust concentration, methane concentration were calculated.

    分别推导出粉尘爆炸热量最大爆炸压力煤尘浓度甲烷浓度等影响因素关系

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  • Experimental study was conducted on the propagation regularity of flame in the process of gas and coal-dust combustion and explosion in the existence of obstacle objects.

    障碍物瓦斯煤尘燃烧爆炸过程中的火焰传播规律进行实验研究,结果表明:障碍物对火焰传播速度具有重要影响。

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  • Gas explosion is major disasters in coal mines, so is coal-dust explosion. Therefore, it is very important to analyze the causes of the explosion and make preventive measures.

    煤尘爆炸瓦斯爆炸一样属于矿井中的重大灾害事故。因此分析煤尘爆炸原因制订防治措施,显得特别重要

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  • The explosion characteristics of pure coal dust and coal-methane mixtures were studied experimentally in this paper.

    本文就此针对煤尘煤尘-甲烷混合物爆炸特性进行实验研究。

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  • The explosion characteristics of coal dust-methane mixture were studied.

    实验研究了煤尘-甲烷混合物爆炸特性

    youdao

  • A mathematical model of relation between dust explosion rate on a coal face and design parameters of a shearer drum is set up by supposing and simplification in the paper.

    通过假设简化建立采煤工作面粉尘爆炸与采煤机滚筒设计参数关系数学模型

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  • The explosion characteristics of pure coal dust were studied.

    实验研究了煤尘爆炸特性

    youdao

  • Due to shell has good dust seal to guarantee whole body anti explosion and to strengthen safety of coal feeder.

    由于壳体的防尘密封确保整体防爆性,增强了给安全性

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  • It improves dust effect and working environment. It provides assure for explosion proof coal dust.

    极大地改善工作面的灭尘效果,改善劳动环境

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  • On the basis of gas explosion tests (without taking part in of coal dust) in different gas content circumstances and regression analysis a series of safety distances have been obtained .

    通过瓦斯爆炸试验回归分析得出了井下一定量沼气煤尘参与条件下发生爆炸时的安全距离

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  • The National Institute for Occupational Safety and Health has discovered that modern mining equipment spits out more coal dust, which can intensify a small explosion into a deadly blast.

    职业安全健康研究所发现现代采矿设备出来煤尘可以成为致命的爆炸强化一个小规模爆炸

    youdao

  • The National Institute for Occupational Safety and Health has discovered that modern mining equipment spits out more coal dust, which can intensify a small explosion into a deadly blast.

    职业安全健康研究所发现现代采矿设备出来煤尘可以成为致命的爆炸强化一个小规模爆炸

    youdao

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