A.5~10Pa B.10~20Pa C.20~100Pa D.0
A.濾器正常 B.濾器臟堵 C.濾器穿孔 D.壓差計破損
A.風(fēng)機堵轉(zhuǎn) B.蒸發(fā)器結(jié)霜 C.艙室溫度降低 D.艙室濕度增大