trolley hoist (or trolley) 中文意思是什麼
trolley hoist (or trolley)
解釋
手動舉重機-
Rules for construction of cranes, monorails, and hoists with bridge or trolley or hoist of the underhung type
起重機單軌吊車和提升機的建造規則 -
Interpretations : overhead and gantry cranes top running bridge, single or multiple girder, top running trolley hoist
說明書:高架和龍門起重機說明
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