track rail

• 导轨

track rail的用法和样例：

例句

1. Each column is equipped in both planes with a preloaded roller bearing guide rail.
   每个立柱的两个平面均配有预加载滚柱轴承导轨。
2. It's welded by the steel pipe and angle steel, the two pieces of steel pipes can act as the guiding track for the suspension coop.
   用无缝钢管和角钢焊接而成，其底边的两根钢管兼做吊笼的导轨。