The measurement method is demonstrated valid in outburst elimination by the examination of remnant gas pressure, pre-drainage rate and the zonal verification during the coal roadway driving.
残余瓦斯压力和预抽率的检验以及煤巷掘进期间的区域验证，均证明按该方法布置的预抽钻孔，消突效果有效。
Blank screen of the multi-parameter monitor is a frequently trouble. From its working principle and the way of examination, the paper introduces the process of analysis and elimination of the trouble.
黑屏是多参数监护仪的常见故障，分析其工作原理，介强了检修思路分析和排除此类故障的一般工作流程。
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