英语词汇“perpetual motion machine”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	perpetual motion machine
释义	perpetual motion machine noun : a device inherently impossible under the law of conservation of energy that can continue to do work indefinitely without drawing energy from external sources
随便看	cross saltire cross sea cross section cross-section cross-sectional cross-section paper cross signal cross skip cross slide cross-spale cross-spall cross spider cross springer cross-staff cross-sterile cross-sterility cross-stitch cross-stone cross street cross string cross suit cross swords cross tag cross talk cross tau

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