electrical insulation短语⁵⁸²⁸⁹ 基本例句 电气绝缘 The tapes can be wound around a duct that carries a flow of liquid nitrogen. Layers of thermal and electrical insulation complete the system , forming a robust power cable. 很多公司现在把高温超导体制成几毫米厚的带子,它们可以绕在装有流动液氮的管子上,再加上几层绝热和绝缘体,一根结实的电缆就完成了。 jukuu