“petticoat insulator”的概念、定义、翻译、参考文献-科学参考

单词	petticoat insulator
释义	petticoat insulator [`ped·i´kōt `in·sǝ´lād·ǝr] ^ELECTRICITY Insulator having an outward-flaring lower part that is hollow inside to increase the length of the surface leakage path and keep part of the path dry at all times.
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