为减少气体绝缘金属封闭式开关设备（GIS）产品运行期间的成本，必须改变维护方式，即从设备的定期维护改变到状态维护。

To reduce the cost during operation for gas insulated and metal enclosed switchgear (GIS), it must be changed for the maintenance way from periodic to condition - based.

youdao

为减少气体绝缘金属封闭式开关设备（GIS）产品运行期间的成本，必须改变维护方式，即从设备的定期维护改变到状态维护。

To reduce the cost during operation for gas insulated and metal enclosed switchgear (GIS), it must be changed for the maintenance way from periodic to condition - based.

youdao