敏捷模型的一个关键特征是开发过程应该演进。
One key characteristic of the agile model was that the development process was expected to evolve.
但主体性的建构本身就是一个技术演进和社会交往的复杂性系统，并从不同角度形成对实践内容、形态和特征的阐释框架。
But subject 's construct is a complex system of technological evolution and social contact, and forms the framework use to explain the practice content, shape and features from different aspects.
计算结果均表明，本文的一维水动力学模型能较好地模拟漫滩河道的过流特征，并改善了漫滩河道洪水演进的模拟与预测能力。
Calculation results show that this model can simulate the characteristics of water flow in a floodplain river and can improve the capacity of flood routing simulating and predicting.
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