南京大胜关长江大桥主桥钢桁拱采用架梁吊机双悬臂架设方案，主墩墩旁托架作为架梁的辅助支承体系必不可少。

Used as the auxiliary supporting system for erection of the spans, the pier-side brackets to be arranged at the main piers of the bridge were indispensible.

youdao

南京大胜关长江大桥主桥钢桁拱采用架梁吊机双悬臂架设方案，主墩墩旁托架作为架梁的辅助支承体系必不可少。

Used as the auxiliary supporting system for erection of the spans, the pier-side brackets to be arranged at the main piers of the bridge were indispensible.

youdao