局(ju)部通(tong)(tong)風(feng)(feng)是指掘(jue)進工作面(mian)(mian)的(de)(de)通(tong)(tong)風(feng)(feng)。在開采(cai)地下井巷時，為了供給新鮮(xian)空氣、稀釋并排出掘(jue)進工作面(mian)(mian)的(de)(de)煙、塵和有(you)害氣體、創(chuang)造良好的(de)(de)作業(ye)環境，可采(cai)用(yong)總(zong)風(feng)(feng)扭通(tong)(tong)風(feng)(feng)、擴散通(tong)(tong)風(feng)(feng)、引(yin)射器和局(ju)扇通(tong)(tong)風(feng)(feng)等局(ju)部通(tong)(tong)風(feng)(feng)方法。
