axial plane of fold

例句：

1. 1. The axial plane of the machine is crucial for its operation.
   机器的轴平面对于其运行至关重要。
2. 2. The folding mechanism operates by using this axial plane to fold the material.
   折叠机构通过使用这个轴平面来折叠材料。
3. 3. The engineer designed the axial plane to ensure optimal performance.
   工程师设计了轴平面以确保最佳的性能。