axial thrust

例句：

1. 1. The machine's axial bearing is worn out.
   这台机器的轴向轴承已经磨损了。
2. 2. The axis of the planet revolves around the sun.
   行星的轴心围绕太阳旋转。
3. 3. The axial symmetry of the structure is important for its stability.
   结构的轴对称性对于其稳定性很重要。