true bearing unit

例句：

1. 1. The true bearing unit of the machine is crucial for its operation.
   机器的真轴承单位对其运行至关重要。
2. 2. The engineer used a true bearing unit to reduce friction and increase efficiency.
   工程师使用了一个真正的轴承单元来减少摩擦并提高效率。
3. 3. The true bearing unit was designed to withstand high pressure and temperature.
   这个真正的轴承单元被设计用来承受高压和高温。