This paper describes the insulationrequirement of the vacuum interrupter which is very important for reliable operation in power system.
文章阐述了真空灭弧室绝缘的要求，并说明对电力系统可靠运行的重要性。
2
Due to the small family space, insulation requirements of the home sealed performance is good, non-toxic, environmental protection is the first requirement for home decoration materials.
因家庭空间小，保温隔热的要求使家居密封性能好，所以无毒、环保是当今家庭装修选材的第一要求。
3
All the circuitry and electrical installation should be in good condition, meet the requirement of power machine, with reliable insulation and convenient control.