... 纵向移动导轨副longitudinal movement rail pair 组焊installed and welded 组焊锚腹板单元AW of anchor web unit ...
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B120型地铁铝合金车体为整体承载全焊接结构，主要采用大型中空铝合金型材组焊而成。
The type B120 metro vehicle aluminum car body is overall load bearing structure, which is mainly made from large aluminum extrusions connected by welding.
介绍了风机集流器弧段压型、组焊的工艺方法。
The method of segmental arc pressing and combinational weld technology of fan collector is introduced.
通过预组装，施工现场组焊质量和周期得到了保证。
Quality and schedule of group welding on site has been improved through pre-assembly.
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