shaft cap

例句：

1. 1.The engineer carefully removed the shaft cap to inspect the bearings.
   工程师小心翼翼地取下了轴盖来检查轴承。
2. 2.The shaft cap was designed to protect the engine from dust and debris.
   轴盖的设计是为了保护发动机免受灰尘和碎片的侵害。
3. 3. The shaft cap is an essential part of the machine's maintenance routine.
   轴盖是机器维护程序中必不可少的一部分。