英语词汇“spiral arms”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	spiral arms
释义	spiral arms spiral arms (spÿ -răl) See density-wave theory; galaxies; Galaxy; self-propagating star formation. spiral arms [′spī·rəl ′ärmz] (astronomy) The shape of sections of certain galaxies called spirals; these sections are two so-called arms composed of stars, dust, and gas extending from the center of the galaxy and coiled about it.
随便看	reverse data-flow graph reversed bandage reversed coarctation reversed consequent stream reversed course reversed door reverse deionization reversed field reversed-field pinch reactor reversed gears reversed genetics reversed halo sign reversed her course reversed her field reversed his course reversed his field reverse dictionary reverse differential-pulse polarography reverse differential-pulse voltammetry reversed image reverse direction reverse-direction flow reverse discrimination reverse dive reversed loader

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