词汇“penumbra”的意思、用法、释义、翻译、读音、例句、短语、词组-国际大辞典

单词	penumbra
释义	penumbrapenumbra[piˈnʌmbrə]n.(pl. penumbrae [-bri:], penumbras)1.■【物】半影, 黑影周围的半阴影2.■(太阳黑子周围的)半暗部; (日, 月食的)半影3.■(绘画中)画面浓淡相交处继承用法penumbraladj.
随便看	brake connecting rod brake connection brake connection pin brake connection rod brake connection rod pin brake control device brake controller brake control rheostat brake control valve brake counter weight brake coupling brake cross lever brake current brake cutout cock brake cylinder brake cylinder displacement brake cylinder force brake cylinder hanger brake cylinder head brake cylinder leakage groove brake cylinder lever brake cylinder lever shaft arm brake cylinder lubricant brake cylinder lubricator brake cylinder piston rod

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