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单词	planation
释义	planation /pləˈneɪʃ(ə)n / noun [mass noun] The levelling of a landscape by erosion.These profiles show evidence for planation at the top of the Outer Plains close to the Inner SDR.... Anglo-American geomorphologists tend to the view that pediments are the result of either lateral planation by ephemeral, migrating streams issuing from bordering mountains, or sheet-flood erosion. Indications of planation near the Inner SDR might either indicate that this unit formed partly under subaerial conditions (subaerial seafloor spreading) or that an uplift episode occurred after its emplacement. Origin Late 19th century: from plane1 + -ation.
随便看	non-intervene non-intervener non-intervening non-intervention non-interventionalist non-interventionism non-interventionist non-intrusion non-intrusionist non-invasive non-invasively non-involvement nonionic non-iron non-irritant non-irritating non-ism non-isotopic non-issue nonius non-Jew non-Jewish nonjoinder non-judgemental nonjudicial

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。