套管内、外绝缘配合设计
coordination between inner and outer insulation
外绝缘设计软件
external insulation design software
污秽外绝缘设计
the external insulation pollution design
the design of polluted external insulator
SF6气体绝缘套管
SF6 gas-insulated bushing
无衬管套管外充填
linerless behind-casing pack
装铅绝缘套管
lead-loaded insulating sleeve
配管设计
Piping design
piping arrangement
pipe-fitting design
design of pipelines to be prefabricated
三维配管设计
3D piping engineering design
外绝缘配置
external insulating level
external insulation
outside-insulation