line bearing

例句：

1. 1. The machine has a linebearing that allows it to move smoothly alongthe rails.
   这台机器有一个直线轴承，可以沿着轨道平滑移动。
2. 2. Theengineer carefully adjusted the line bearing to ensuresmooth operation.
   工程师仔细调整了直线轴承，以确保平稳运行。
3. 3. The new design usesa more efficient line bearing to reduce frictionand improve performance.
   新设计使用了更高效的直线轴承，以减少摩擦并提高性能。