“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	National Center for Scientific Research in France National Center for Traditional Arts, Yilan County National Center for University Works National Center of Educational Development Research National Center of Geriatrics and Gerontology National Center of ITS Engineering & Technology National Centers for Environmental Prediction（US） National Central Library National Central Mmuseum of Mass Education National Central Museum, Nanking National Central University National Centre for Radio Astrophysics of India National Centre for Vocational Education Research national certified reference material national character national characters encoding national characters font national characters information processing national characters input method national characters subset of unicode National Charter Association National Charter of Museum Professions National Charter of Republic of Rif national chemical measurement standard National Chengtu Higher Teacher School

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