continuously welded rail track

例句：

1. 1. The continuouswelded rail tracks are essential for the railway's smooth operation.
   连续焊接的钢轨对于铁路的顺畅运行至关重要。
2. 2. Due to the continuous welding process, the rail track is very durable and resistant to wear.
   由于连续焊接工艺，钢轨非常耐用且抗磨损。
3. 3.The continuous welded rail tracks have been used in many countries to improve transportation efficiency.
   连续焊接的钢轨被许多国家用于提高交通效率。