gantry beam detail 龙门架梁
beam gantry 梁式台架
Double beam gantry crane 双梁门式起重机
Double beam gantry crane hook 双梁吊钩门式起重机
Dual Beam Gantry 单双梁龙门式
single-beam gantry crane 单梁龙门吊
beam-reverse-loading gantry crane 桥梁倒装龙门吊
single-beam electric hoist gantry crane 电动葫芦单梁门式起重机
The points of hoisting design of semi-span gantry crane are analyzed. The construction schemes, methods and safety of T-shaped beam hoisting are introduced.
分析了半跨龙门吊的设计安装要点，着重介绍了T梁的吊装施工组织方案、施工方法及安全技术保证措施。
The main beam is the main hoist gantry crane force components, main beam directly affects the service life of machine.
主梁是葫芦门式起重机的主要受力部件，主梁的质量直接影响到整机的使用寿命。
Automatic gripping beam is a specialised banging device for gantry cranes used at hydropower stations.
自动抓梁是水电站门式起重机的专用取物装置。
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