axial construction

例句：

1. 1. The machine is designed for axial operation.
   这台机器是设计为轴向操作的。
2. 2. The axis of the planet revolves around its center.
   行星的轴线围绕其中心旋转。
3. 3. The axial symmetry of the structure makes it stable.
   结构的轴对称性使其稳定。