A.設備B.人員C.衛(wèi)生D.操作
A.50PPMB.24PPMC.100PPMD.110PPM
①不正常的運轉(zhuǎn)噪聲 ②鼓風機太熱 ③吸入流量太低 ④電動機需用功率超出 ⑤邊側(cè)皮帶振動 ⑥鼓風機在切斷電源后倒轉(zhuǎn)