局(ju)(ju)部通(tong)(tong)(tong)風(feng)是(shi)指掘進(jin)工作面的(de)通(tong)(tong)(tong)風(feng)。在開采地下井巷時，為了(le)供給新鮮空(kong)氣、稀釋并(bing)排出(chu)掘進(jin)工作面的(de)煙(yan)、塵(chen)和(he)有害氣體、創造良好的(de)作業(ye)環境，可采用總(zong)風(feng)扭通(tong)(tong)(tong)風(feng)、擴(kuo)散通(tong)(tong)(tong)風(feng)、引射器和(he)局(ju)(ju)扇通(tong)(tong)(tong)風(feng)等局(ju)(ju)部通(tong)(tong)(tong)風(feng)方(fang)法。
