英语词汇“extension rule”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	extension rule
释义	extension rule noun : a sliding attachment to a folding rule for the measuring of inside distances between objects
随便看	iceless icelike icemakers iceman icemanship icemen Iceni icenian icenic icepacks icepicks icequake icer iceroot icers ices ices over ices up icescape icescapes iceshockle icetrayes icetrays icewaga icewagons

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extension rule