再次，建立了复杂系统脆性研究的理论基础。
Thirdly, theoretical basis of complex system brittleness has been set up.
将复杂系统脆性理论应用于分析煤矿事故系统。
Brittleness theories of complex system are applied to analyze the coal mine accident system.
根据复杂系统脆性的定义，提出了脆性是复杂系统的一个基本特征。
According to the definition, brittleness is one of the basic characteristics of complex system.
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