trolley track 中文意思是什麼
trolley track
解釋
滾輪滑軌-
Cranes - design calculation for rail wheels and associated trolley track supporting structure - general
起重機.軌道輪和相關觸輪滑軌支撐結構的設計計算.總則 -
Cranes - design calculation for rail wheels and associated trolley track supporting structure - part 1 : general
起重機.軌道輪和相關觸輪滑軌支撐結構的設計計算.第1部分:總則
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