fold axis

例句：

1. 1. The engineer designed the newmachine with a folding axis that couldbe easily adjusted.
   工程师设计了这台新机器，带有一个可以轻易调整的折叠轴线。
2. 2. The scientist discovered a new wayto fold an axis using laser technology.
   科学家发现了一种使用激光技术折叠轴的新方法。
3. 3.In the manufacturing process, the foldingaxis is crucial for ensuring precision and accuracy.
   在制造过程中，折叠轴线对于确保精确性和准确性至关重要。