floor operated crane
... floor opening 楼板孔 floor operated crane 地面控制起重机 floor paint 地板涂料 ...
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为改善地面操作起重机的起动、点动运行性能，可选用绕线型电动机加外延时继电器控制。
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.
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模块下移
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