Tyre loose results in serious security accidents of locomotive digression, so it is significant to monitor the condition of tyre loose for safe driving on railway.
When driving and maintaining a drift in loose and fractured host rock, carrying capacity of host rock tends to be poor and underground pressure be intensifying.
在松散破碎围岩条件下进行巷道开掘及维护时，往往会出现围岩承载能力差、矿压显现剧烈等一系列问题。
3
The tension of generator driving belt must be adjusted correctly; it can not be too loose or too tight.