track rail的用法和樣例：
例句
- Each column is equipped in both planes with a preloaded roller bearing guide rail.
每個立柱的兩個平面均配有預載入滾柱軸承導軌。 - 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.
用無縫鋼管和角鋼焊接而成，其底邊的兩根鋼管兼做吊籠的導軌。
