axial subspace

例句：

1. 1. Themachine is designed to operate in anaxial direction.
   这台机器设计成能沿轴向运行。
2. 2. The axis of theplanet revolves around the sun.
   行星的轴心围绕太阳旋转。
3. 3. Theaxial symmetry of thestructure makes it easy to understand.
   结构的轴对称使得理解起来很容易。