insulation type angle 绝热式角阀

vacuum type insulation 真空式绝缘

insulation type test 绝缘型式试验

Reinforced insulation type 加强绝缘形

ceramic type insulation 瓷绝缘

Resin insulation dry-type transformers 树脂绝缘干式变压器

fill type insulation 装填式隔热

vacuum-type insulation 真空式热绝缘

blanket type insulation 垫子式保温