The results of experiment testify that the method not only realizes the normal ventilation and gas drainage in drivage roadway but also saves energy.
实验表明，该方法能较好地实现掘进巷道的正常通风和瓦斯排放，并达到节能效果。
Based on the computing of sensibility of reliability of ventilation system, the concept of graded management to roadway is advanced.
通过对通风系可靠性的灵敏度计算，提出对巷道进行分级管理的概念。
Based on the computing of sensibility of reliability of ventilation system, the concept of graded management to roadway is advanced.
通过对通风系可靠性的灵敏度计算，提出对巷道进行分级管理的概念。
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