英语词汇“porcelain tube”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	porcelain tube
释义	porcelain tube porcelain tube A ceramic tube having a slight shoulder on one end; in exposed electric wiring, used to carry an insulated conductor where it passes through a wood joist, stud, etc.
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