英语词汇perpetual motion怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	perpetual motion
释义	perpetual motionn.（名词） The hypothetical continuous operation of an isolated mechanical device or other closed system without a sustaining energy source.永恒运动：一种奇特的机械设备或其它封闭系统，无需提供能量而永恒不断地运转
随便看	calashes calathea calatheas calathus calc- calc. calcanei calcaneocuboid ligament calcaneus calcar calcareous calcaria calcaria calcarine sulcus calcarious calcars Calcasieu calcedony calcedony calceolaria calceolarias calceolate calces calces calci-

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