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Unsteay flow mathematic model of the system was established.
建立系统非恒定流数学模型。
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The mathematic model of these system has the form of triangular system.
该系统的数学模型满足“三角形系统”形式。
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The mathematic model of these system has the form of triangular system.
该系统的数学模型满足“三角形系统”形式。
youdao