axis of bending的用法和样例：
- The act or posture of bending low or crouching.
- The axis of a circle is its diameter.
- In the act of bending down, he slipped and hurt his back.
- The Test and Alignment Without Flat Board of Bend Axis of The Diesel Engine
- The main axis of a compound leaf.
- He's too fond of bending the elbow.