“sand”的概念、定义、翻译、参考文献-科学参考

单词	sand
释义	sand Encyclopedia 工学[矿物材料]释 sand砂一种粒径在0.05～2毫米的碎屑。农学砂粒释 sand砂粒土壤物质中粒组直径在50微米（美国制）或20微米（国际制）～2毫米的成分。是土壤物质的最大粒组。理学﹝土力学基本概念﹞释 sand砂土粒径大于2毫米的颗粒含量不超过全重50%，且粒径大于0.075毫米的颗粒含量超过全重50%的无黏性土。
随便看	educational services Educational Sicence Publishing House educational social psychology educational statistics educational statistics method educational supervision educational teaching educational technology educational television educational television station Educational Theatre Program in the Shanghai Theatre Academy Educational Theatre program of City University of New York educational theory educational thought educational thought of Comenius educational thought of early utopian socialist educational thought of pragmatism educational thoughts of existentialism educational thoughts of reconstructionalism educational tracking/streaming educational tradition educational work of archival science education and correction education and research of electronic commerce education and scientific research map

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