Water resources carrying capacity(WRCC)is a basic measurement of water resources security that plays a very important role in recognizing and building water resources security system.

水资源承载力是对水资源安全的一个基本度量，研究水资源承载力对于认识和建设水资源安全保障体系具有重要意义。

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Water resources carrying capacity is a basic measurement of water resources security, which plays a very important role in recognizing and building water resources security system.

水资源承载力是区域水资源安全的基本度量，对于区域认识和建设水资源安全保障体系有重要的意义。

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There are two basic causes. A main factor affected is the material-sand in producing brick, and the other important is water capacity of brick in building.

考察其原因，原料砂是影响其抗剪性能的主要因素，砌筑时砖的含水率是其重要因素。

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