英语词汇“poncelet wheel”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	poncelet wheel
释义	poncelet wheel noun Usage: usually capitalized P Etymology: after Jean Victor Poncelet : an undershot waterwheel that is suitable for falls of less than six feet
随便看	safety lamp safety lift safety link safety lock safetyman safety match safety net safety nut safety paper safety pin safety pinion safety plug safety rail safety razor safety shoe safety stop safety straps safety switch safety switchboard safety tread safety tube safety valve safety zone saffi saffian

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