fixed appliance

例句：

1. 1. The engineer designed a new model of fixed appliance for the factory.
   工程师为工厂设计了一款新型的固定装置。
2. 2. The old house has been converted into a museum housing many fixed appliances.
   这所旧房子被改造成了一个博物馆，里面收藏了许多固定装置。
3. 3.The technicians were fixing an old refrigerator in the kitchen.
   技术人员正在修理厨房里的一台旧冰箱。