Steel rail is an important component of track structure, and is also the primary infrastructure of high speed railway.
钢轨是轨道结构的重要部件，是高速铁路重要的基础设施。
The invention also relates to an assembling method of the steel structure node component.
本发明还涉及一种钢结构节点组件的装配方法。
Truss is the main structural component, its standardization design and factory melt produce is very important, for the application of the staggered truss system in the residence steel structure.
桁架是交错桁架体系的主要构件，桁架的标准化设计、工厂化制作对推动交错桁架体系在我国钢结构住宅中的应用具有重要意义。
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