局(ju)(ju)部通(tong)(tong)風(feng)(feng)是指掘(jue)進工(gong)作(zuo)面(mian)的通(tong)(tong)風(feng)(feng)。在開(kai)采地下井巷時，為了供給新鮮(xian)空氣、稀(xi)釋并排出掘(jue)進工(gong)作(zuo)面(mian)的煙(yan)、塵和有害氣體、創造良好的作(zuo)業環境(jing)，可采用總風(feng)(feng)扭通(tong)(tong)風(feng)(feng)、擴(kuo)散(san)通(tong)(tong)風(feng)(feng)、引射器(qi)和局(ju)(ju)扇通(tong)(tong)風(feng)(feng)等局(ju)(ju)部通(tong)(tong)風(feng)(feng)方法(fa)。
