“variable nebula”的概念、定义、翻译、参考文献-科学参考

单词	variable nebula
释义	variable nebula [`ver·ē·ǝ·bǝl `neb·yǝ·lǝ] ^ASTRONOMY A nebula whose shape and brightness vary; an example is in the constellation Monoceros.
随便看	quarter-wave transmission line quartic quartic equation quartic surd quartile quartile deviation quartz quartzarenite quartz basalt quartz-bearing diorite quartz claim quartz clock quartz crystal quartz-crystal filter quartz-crystal resonator quartz delay line quartz diorite quartz fiber quartz-fiber dosimeter quartz-fiber electroscope quartz-fiber manometer quartz-flooded limestone quartz graywacke quartz horizontal magnetometer quartz-iodine lamp

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