无缝线路,焊接钢轨
China has successfully built the world's only track& XB high accuracy rocket sled test track, of which the rails are specially machined and then welded continuously.
我国已成功地建成世界上唯一的、钢轨经精密机械加工后再全程焊接的XB高精度火箭橇试验滑轨。
Stability of tracks with continuous welded rails using equilibrium of inner and external moment of force
内外力矩平衡法计算无缝线路轨道稳定性
Tracks [ Long welded rails ] are being laid for [ om ] this line.
这条线路正在铺设铁轨 [ 长轨 ].
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