灾变链式理论
chain-styled theory of the disaster
theory of eco-environmental catastrophe chain
地震灾变事件
seismic events
seismic catastrophic event
catastrophic events
地震灾变预测
Seismological hazard prediction
电力系统灾变问题
Discussion on Power System Collapse Question
电力系统灾变应对
against electrical disaster
电力灾变的防御
defending electrical disaster
动态阀值灾变
dynamic threshold disaster