單項選擇題
A.滑板碳條剩余高度小于運用限度B.滑板斷裂C.掉塊在寬度方向達20%D.縱向貫穿性裂紋
A.3B.4C.5D.6
A.0.5~1B.0.6~1C.0.7~1D.0.8~1
A.上部B.中部C.下部D.底部
A.0.15B.0.03C.0.01D.0.02
A.85N·mB.90N·mC.95N·mD.100N·m
A.5minB.3minC.10minD.8min
A.120sB.90sC.30sD.60s
A.1750±25B.1725±35C.1725±25D.1750±35
A.開關(guān)B.空氣過濾器C.壓力開關(guān)D.壓力傳感器
A.1B.2C.3D.4