indoor post insulator

例句：

1. 1. The engineerdesigned a new indoor post insulatorfor the building.
   工程师为大楼设计了一种新型的室内绝缘体。
2. 2. Theinsulator is madeof high-quality materials toensure long-term durability.
   这种绝缘体是由高质量的材料制成的，以确保长期耐用。
3. 3. The insulator plays an important rolein protecting electrical equipment from overheating.
   绝缘体在保护电气设备免受过热方面起着重要作用。