annular producer

例句：

1. 1. The annular producer is a device used to produce circular objects such as rings.
   环形生产者是一种用于生产圆形物体如戒指的设备。
2. 2. The annular producer was designed to improve the efficiency of the production process.
   环形生产者被设计用来提高生产过程的效率。
3. 3.The annular producer has become increasingly popular in recent years due to its unique design and functionality.
   由于其独特的设计和功能，环形生产者近年来越来越受欢迎。