The defect mechanism and precaution of hydraulic jacking system are carried out and presented in this paper.
本文对塔式起重机液压顶升系统常出现的故障机理及防治方法进行综合研究。
The paper describes how hydraulic jacking and level-conveying shipment system for heavy and large cargo is designed.
设计了一种重大件货物液压顶升与平移装船工作系统。
The article introduces the inverting way of assembling an oil tank by air jacking, and analyzes the pressure and air flow needed by air jack system.
介绍拱顶油罐的充气顶升倒装之施工方法，对充气所需风量、风压进行了分析。
The article introduces the inverting way of assembling an oil tank by air jacking, and analyzes the pressure and air flow needed by air jack system.
介绍拱顶油罐的充气顶升倒装之施工方法，对充气所需风量、风压进行了分析。
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