passive system

• 无源系统,被动式,被动系统

passive system的用法和样例：

例句

1. Space heating is provided from the passive solar source of the conservatory.
   空间采暖由以带温室的被动式太阳能系统提供。
2. The other two are passive communication and aggressive communication.
   另外两种是被动式交流和侵略式交流。