粉塵防爆電機定義

   粉塵防爆電機

    tazhiqiwaikeanguidingtiaojianshejizhizao，nengzuzhifenchenjinrudianjiwaikeneihuosuibunengwanquanzuzhifenchenjinru，danqijinruliangbufangaidianjianquanyunxing
，qieneibufenchendeduijibuyichanshengdianranweixian，shiyongshiyebuhuiyinqizhouweibaozhaxingfenchenhunhewubaozhadedianji。