英语词汇“螺旋星云{ngc 7293}”的翻译、意思、用法、释义-英汉汉英词典

单词	螺旋星云{ngc 7293}
释义	螺旋星云{NGC 7293}Helix Nebula
随便看	mass card, mass card mass casualties mass catering mass center mass center--center of mass mass centering mass centering machine mass-center motion of spacecraft mass centrifuge mass chromatography mass-circulation mass coefficient mass coefficient of reactivity mass collection mass colony mass color mass colouration mass commoditization mass communication mass communication education mass communication media mass communication medium mass communications mass communicology mass concentration