steel bridge welding structure的意思|示意
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钢桥焊接结构
steel bridge welding structure的网络常见释义
钢桥焊接结构 steel bridge welding structure 钢桥焊接结构 收藏 steel anched bridge 钢桁架拱桥 收藏 .
steel bridge welding structure相关例句
At present, there is not special technological criterion or specification in China for manufacturing and welding steel structure of railway bridge girder erecting machine.
目前，国内在铁路架桥机钢结构的制造及焊接工艺方面，还没有专门的规范或规程。