基于系统观点在数学层次上对客观存在的自然灾害链给予定义，并针对灾害链系统结构模式对其性质进行研究。

The natural disaster chain in the form of mathematical language on the basis of the system analysis methods is defined, and its property based on the disaster chain mode is studied.

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基于系统观点在数学层次上对客观存在的自然灾害链给予定义，并针对灾害链系统结构模式对其性质进行研究。

The natural disaster chain in the form of mathematical language on the basis of the system analysis methods is defined, and its property based on the disaster chain mode is studied.

youdao