trunnion block

例句：

1. 1. The engineer useda trunnion block to adjustthe machine's position.
   工程师使用一个转轴块来调整机器的位置。
2. 2. Thetrunnion block was designed toreduce friction between the gears.
   这个转轴块的设计是为了减少齿轮之间的摩擦。
3. 3.The trunnion block is essentialfor maintaining the smooth operation of the machine.
   转轴块对于保持机器的平稳运行至关重要。