英语词汇“concentric main”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	concentric main
释义	concentric main Electricity (now historical ) noun A main electricity supply cable consisting of one or more concentric cables. Used especially in reference to the cable invented in 1890 by Sebastian de Ferranti (1864–1930), which consisted of a number of rigid concentric cables joined together.. Origin Late 19th century.
随便看	milksoppery milksoppish milksoppy milk spot milkstone milk store milk stout milk sugar milk tart milk thistle milk-tie milk toast milk tooth milk train milk-tree milkus milk-vessel milk vetch milk-walk milk-warm milkweed milkweed beetle milkweed bug milkweed butterfly milk-white

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concentric main