The basic laws which are particularly used to study sequential hazards are given.
给出了对时序险象研究特别有用的基本判定法则。
The degrees of soil liquefaction are divided into four classes according to liquefaction index, and the corresponding relations between liquefaction indexes and seismic hazards are given.
按液化指数把液化程度分为四级，并给出液化指数和震害的对应关系。
The strategies and Suggestions to prevent and treat water hazards incident are given which have important guiding significance to mine production.
并提出的防治水害事故的对策和建议，对煤矿生产具有重要指导意义。
The strategies and Suggestions to prevent and treat water hazards incident are given which have important guiding significance to mine production.
并提出的防治水害事故的对策和建议，对煤矿生产具有重要指导意义。
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