“normal spiral galaxy”的概念、定义、翻译、参考文献-科学参考

单词	normal spiral galaxy
释义	normal spiral galaxy [`nȯr·mǝl `spī·rǝl `gal·ik·sē] ^ASTRONOMY A galaxy that has a lens-shaped central portion with two arms that begin to coil in the same plane and in the same fashion immediately upon emerging from opposite sides of it.
随便看	clotting time cloud cloud absorption cloudage cloud attenuation cloud band cloud bank cloud banner cloud bar cloud base cloudburst cloudburst hardness test cloudburst treatment cloud cap cloud chamber cloud classification cloud column cloud cover cloud crest cloud deck cloud-detection radar cloud discharge cloud droplet cloud-drop sampler cloud echo

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