英语词汇“blockhead board”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	blockhead board
释义	blockhead board noun : a device that consists of a pair of conspicuously numbered boards one of which rises while the other falls and that is used as a detector on a jacquard loom to show if the cards are working correctly
随便看	kern river trout kerns kerogen kerogenous kerosene kerosine kerplunk kerr kerrana kerr cell kerr effect kerria kerria kerrie kerril kerry kerry kerry blue terrier kerry hill kers kersanne kersanné kersenneh kersey kerseymere

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