self balancing device

• 自平衡装置

self balancing device的用法和样例：

例句

1. The structure and working mechanism on the new type of spring-piston pressure auto-balancing device with condenser was introduced.
   介绍了作者自行设计的带冷凝器新型弹簧活塞式压力自平衡装置结构及其工作原理。