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[單選題] 驅動輪磨擦襯墊固定良好,繩槽磨損深度不應超過( )。

作者:煤礦安全網 2022-01-27 09:25 來源:煤礦安全網 單選題 磨擦 襯墊 深度
題目信息:

  [單選題] 驅動輪磨擦襯墊固定良好,繩槽磨損深度不應超過( )。

  A、 60 mm

  B、 70 mm

  C、 80 mm

  D、 90mm

答案

煤礦安全網(http://www.nanibalconysafetynets.com)

備案號:蘇ICP備12034812號-2

公安備案號:32031102000832

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