水资源系统是一耗散结构，本文以水资源量作为序参量，来描述水资源系统的有序性和演化方向。
Based on the assumption of water resources system is a dissipative structure, the water is regarded as a sequential parameter to describe the sequence and evolution direction of system.
本文引入了信息熵理论，用多元联合熵来刻画航空发动机的有序性和演化方向。
Information entropy theory was introduced into this paper, and multi-joint entropy was used to depict the aero-engine's disorder parameter and evolutive trend.
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