shaft bushing

例句：

1. 1. The machine needs a new shaftbushing to keep it running smoothly.
   这台机器需要更换新的轴套来保持其平稳运行。
2. 2. The engineer replaced theworn-out shaft bushing with anew one.
   工程师用一个新的轴套替换了磨损的轴套。
3. 3. Theshaft bushing is essentialfor preventing the bearing from wearingout prematurely.
   轴套对于防止轴承过早磨损至关重要。