Jones reducer

例句：

1. 1. The Jones reducer is designed to improve the efficiency of the machine.
   琼斯减速器旨在提高机器的效率。
2. 2. The engineers used a Jones reducer to reduce vibration in the system.
   工程师们使用了一个琼斯减速器来减少系统中的振动。
3. 3. The Jones reducer was installed at the point where the gears meet, reducing the stress on thebearings.
   琼斯减速器安装在齿轮交汇处，减轻了轴承上的压力。