“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	water conservancy information management water conservancy information network water conservancy information resource planning water conservancy information resource system water conservancy informatization water conservancy informatization organization system water conservancy informatization planning water conservancy in pastoral area water conservancy institutions in Australia water conservancy institutions in Canada water conservancy institutions in Egypt water conservancy institutions in France water conservancy institutions in India water conservancy institutions in Israel water conservancy institutions in Japan water conservancy institutions in Kazakhstan water conservancy institutions in Mexico water conservancy institutions in Netherlands water conservancy institutions in Pakistan water conservancy institutions in Thailand water conservancy institutions in the United States water conservancy machinery water conservancy machinery in ancient China water conservancy management water conservancy migration management information system

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