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掘进机掘进准备巷道工作面空间的压吸降尘通风综合设备掘进巷道时，利用喷雾设备是为了限制含尘量，而且只能限制在８０％～８５％范围内，所以，必须使用其它更有效的方法。吸尘系统是改善卫生保健的传统方法。建立和使用的各种方法及吸尘系统的经验指出，足够高的纯洁度...
When boring machines digging for pressure suction dust and dust ventilation in the working face space of the roadway, the spray equipment is used to limit the dust content and can only be limited within the range of 80% ~ 85%. Therefore, other more effective method. Vacuuming systems are the traditional way to improve health care. The experience of establishing and using various methods and vacuum systems has pointed out that purity is high enough ...