常見例句雙語例句Can be used in Zone 20 zone 21 and Zone 22 dangerous places. Can be used in explosive or flammable dust atmosphere.粉塵防爆照明應急兩用燈,21區(qū),22區(qū)危險場所。 含有爆炸性或可燃性粉塵環(huán)境。 返回 explosive dust atmosphere