• 改善地面操作起重机起动点动运行性能,选用绕线型电动机加外延继电器控制

    Slip-ring motor can be used in conjunction with time delay relays for floor operated cranes to improve their travelling quality during start and inching.

    youdao

  • 改善地面操作起重机起动点动运行性能,选用绕线型电动机加外延继电器控制

    Slip-ring motor can be used in conjunction with time delay relays for floor operated cranes to improve their travelling quality during start and inching.

    youdao

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