薄壁多室箱形截面是机械结构中常见的一种结构形式。
Thin wall box shape section is a kind of structure generally adopted for machines.
箱形截面构件薄壁板与内隔板电渣焊接时，易产生壁板烧穿和焊缝未熔合现象。
The weld defects of incomplete fusion and burn through always occur when the electro-slag welding is used between the outside thin metal plate and the inner clapboard in a box-section member.
我国已建成的一些大跨径连续梁桥及大跨径连续刚构桥都普遍采用薄壁箱形截面。
The structure of thin-walled box girders are commonly applied in some large span continuous beam bridges and rigid frame bridges in our country.
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