gantry cranes meaning in Chinese

门式起重机

If the site is small, it may be commanded by a gantry crane .
假如场地小，则可采用龙门式吊车进行操作。
Overload protectionfor hall - gantry cranes
用于车间起重机门起重机的过载保护
To be positioned and handled by hatch cover gantry crane
用舱口龙门吊来吊放它们。
2 gantry cranes of lifting weight 20 tons
起重量20吨的大型龙门吊2台。
Interpretations : rules for construction of overhead and gantry cranes
说明:高架结构和龙门吊的规则

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