A.拆下電刷及電刷架B.拆下端蓋C.拆下帶輪D.拆下防護(hù)罩
A.分散式B.整體式C.半分置式D.分置式
A.0.10~0.30mmB.0.20~0.30mmC.0.30~0.35mmD.0.10~0.35mm