The construction approach is to use the cantilever launching method of the Bailey trussed girder to conduct the hoisting of the steel arch bridge with simple low-speed hoister and manual mini-cranes.是什么意思_The construction approach is to use the cantilever launching method of the Bailey trussed girder to conduct the hoisting of the steel arch bridge with simple low-speed hoister and manual mini-cranes.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句