绝缘物 meaning in English

insulant
insulating compound
insulating material
insulating wrapper
isolator
spacer

Dry air is a good insulator, but sea water is not .
干燥空气是一种好绝缘物，海水则不是。
Pin insulation cement
接线杆绝缘物胶合物
In order to keep balance of electric power system and enhance the using rate of electric power , the locomotive is requested to pass over of neutral section
为使电力系统三相负荷平衡和提高电网的利用率，要求电气化铁路接触网分相供电。为防止相间短路，各相间用空气或绝缘物分割，称为电分相。