“progressive sand wave”的概念、定义、翻译、参考文献-科学参考

单词	progressive sand wave
释义	progressive sand wave [prǝ`gres·iv `sand ´wāv] ^GEOLOGY A sand wave characterized by downcurrent migration.
随便看	alternating function alternating gradient alternating-gradient focusing alternating-gradient synchrotron alternating group alternating-group flashing light alternating-group occulting light alternating occulting light alternating series alternating stress alternating voltage alternation alternation of generations alternation of multiplicities law alternative algebra alternative hypothesis alternative RNA splicing alternator alterne altherbosa altigraph altimeter altimeter corrections altimeter setting altimeter-setting indicator

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