rotary device

• 旋转装置

rotary device的用法和样例：

例句

1. They are developing a new turning mechanism for the device.
   他们正在研制这一设备的新的旋转装置。
2. The Lead Pump is usually of the simple rotary design which requires little attention.
   铅液泵通常是一个简单的旋转装置，很少需要维护。