According to the horizontal moving rule of bridge crane and the swing rule of grab, We propose a method about swing proof of grab.

根据桥式起重机水平运行规律及抓斗摆动规律，提出了抓斗防摆的一种方法。

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According to the mechanical analysis of bridge crane's grab, the mathematical model between crane's horizontal movement and grab swing is established.

根据起重机抓斗的受力分析，建立了起重机水平运行与抓斗摆动关系的数学模型。

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This paper introduces the structural design and construction method by swing of the bridge.

介绍该主桥的结构设计和采用的转体施工方法。

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The swing bridge connects the town to Shoreham Beach and replaces an older structure that could not economically be repaired.

BBC: Shoreham swing bridge nearing completion

Plans have been put forward to replace the floating swing bridge with an automated moving pontoon.

BBC: New Broads river crossing planned

There are separate plans which could also see the river's listed Swing Bridge illuminated.

BBC: Lighting up the Tyne