“piedmont gravel”的概念、定义、翻译、参考文献-科学参考

单词	piedmont gravel
释义	piedmont gravel [`pēd´mänt ¦grav·ǝl] ^GEOLOGY Coarse gravel derived from high ground by mountain torrents and spread out on relatively flat ground where the velocity of the water is decreased.
随便看	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 quartzite quartzitic sandstone quartz lamp quartz lattice quartz mine quartz monzonite quartz oscillator quartzose quartzose arkose quartzose chert

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