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otis mCDonAlD

OTIS奥的斯电梯故障集锦100例故障1:3100用户投诉电梯停止不能运行,外呼不起作用...故障3:T2000VF用户投诉电梯关人,到达后放人,到机房开检修电梯不动,TT检查MC...

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