人地系统是由人类社会系统和地球自然物质系统交互作用而成，它们之间的竞争和协同推动人地系统的演进。
Man-earth system is composed of human society system and physical system of the earth, whose competition and coordination promote man-earth system.
随着研究的深入，人们开始认识到一种由离散事件与连续系统交互作用的一类混杂系统问题的重要性和挑战性。
Hybrid systems consist of the discrete event interacting with continuous dynamic, and the theory and application of hybrid systems have attracted many researchers.
这种方法的独特性在于这些交互作用并不是孤立存在，而是从系统的高层使用中获得的。
A uniqueness of this approach is that these interactions do not exist in isolation, but are derived precisely from the high-level usages of the system.
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