单词	Sprengel pump
释义	Sprengel pump noun : an air pump in which exhaustion is produced by drops of mercury running down a narrow tube and trapping bubbles of gas between them Word History Etymology after Herman J. P. Sprengel
随便看	Ludhiana ludians ludibrious ludic ludicro- ludicrous ludicrously ludicrousness ludicrousnesses ludification ludlamite Ludlovian Ludlow ludo ludos luds ludvigia Ludwigia ludwigite Ludwigsburg Ludwigshafen am Rhein lueders' line lueneburgite lues luetic

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