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    Determination of Critical Value of Gas Desorption Index of Drillings,Δh 2,in Laboratory
    实验室确定钻屑解吸指标Δh_2临界值方法的研究
    A Modification Design and Adjusting Test for Instruments and Control System of Critical Assembly
    临界装置仪控系统的更新设计与调试
    Determination application of critical value in coal and gas outburst prediction by electromagnetic emission method
    煤与瓦斯突出电磁辐射预测指标临界值的确定及应用
    The Determination of Critical Value of Oxygen Content of Polytropic Combustible Gases
    多元可燃性混合气体临界氧浓度的测定
    The contents and results studied in this paper are as follows:This paper, first based on the classification of hazard and major hazard, makes a heuristical study on assessment standard of critical value in hazard substance according to state standard (GB18218-2000)o The original energy and educed energy in the material are considered, and equivalent method and toxicity level method are put forward to make the method of critical value in hazard substance sure.
    首先,根据国家GB18218-2000《重大危险源辨识》标准,在危险源、重大危险源定义和分类的基础上,对危险物质临界量判定标准作了试探性的研究。 从物质的固有能量和诱发能量两方面考虑,提出了当量法和毒性分级法确定危险物质的临界量的方法。
    A formula of critical safety distance between two vehicles moving on the same trace of highway is built up by theoretical deduction,which is useful to the practice of vehicle's use.
    根据理论分析 ,推导出高速公路上行进中车辆临界安全车距的计算公式 ,并以此为依据进行了有关论述
    The review process of critical heat flux calculation correlation FC-2000, the main review issues and opinions are introduced, and the restrictions to the application of FC-2000 are given.
    介绍了针对临界热流密度关系式FC-2000的审评过程、审评关注问题和审评意见,给出了FC-2000应用的限制条件。
    According to the theory of limit point of stability,the stable condition for rocks around tunnel is put forward,and the values of critical porous hydraulic pressure of rocks around tunnel are acquired by taking the ground water permeation effect into account.
    并根据极值点失稳理论,提出了巷道围岩稳定条件,给出了渗流作用下巷道围岩稳定的孔隙水压力的临界值。
    And the specific time and date of critical days could be predicted in the safety management and production. It is convenient for enterprises to adjust working activities and workers could avoid man-made accidents.
    在安全管理和生产活动过程中,只要查阅此表就可预测作业者在某一时期的双重、三重临界日的具体时间和日期,便于企业调整作业活动和工作安排,避免作业者处于临界日时,因人为失误而造成事故发生。
    On the basis of determining principle of critical value on coal and gas outburst forecasting index,influence factors and their changing laws of forecasting danger of coal and gas outburst by way of electromagnetic emission(EME) in working face were observed,a comprehensive judging method of critical value on coal and gas outburst forecasting index was put foreard and applied the method to Hongling coal mine of Shenyang mining group.
    基于煤与瓦斯突出预测指标临界值确定原则,现场考察了工作面煤与瓦斯突出电磁辐射预测影响因素及变化规律,提出了工作面煤与瓦斯突出电磁辐射预测指标临界值的综合评判确定法,并在沈阳矿业集团红菱煤矿进行了试验性应用。
 

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