理论研究表明，冲击地压实质为一种矿山岩体的动力现象，是矿山开采带来的一种动力学灾害。
The theory studies have showed that, rock burst is a kind of dynamic phenomenon of mining rock, and is a kind of dynamic disaster coming from mining.
从火山学和火山动力学、统计研究、火山灾害以及火山活动对全球气候变化的影响回顾了近年火山学研究的主要进展。
In this paper, advances in volcanology are reviewed from the following aspects: volcanic geology and dynamics, statistical study, volcanic hazard and volcanic impact on global climate.
工程场地破裂灾害是区域非稳定动力学环境下的灾害效应之一，但目前对其尚无针对性系统研究。
Fracture of engineering site is one of the main disaster under the environment of the regional instability dynamics. At present, it still lacks systematical research.
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