道岔与无缝线路焊接后，随着轨温的变化，长钢轨纵向温度力将直接作用于道岔的撤叉和转撤部分。
When a turnout is connected with CWR through welded joints, the longitudinal rail temperature force ACTS directly on the frog and the switch section along with the variation of rail temperature.
无缝线路长钢轨通常由铁路焊轨厂或现场焊轨基地焊接。
Long rails in jointless track are usually made on welded rail site or in railway welded rail factory.
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