This can satisfy well time frequency analysis of multi graduation characteristic signal.
这一特点恰好满足对具有多刻度特征信号进行时频分析定位的要求。
Based on the force analysis of single bubble movement and movement characteristic research of many bubbles in random time section, the mathematics modeling of many bubbles movement was built up.
在对水下单气泡运动受力分析及任意时间剖面多气泡运动特性研究的基础上，建立了水下气泡群运动数学模型。
The fundamental principle and methods of probabilistic seismic hazard analysis based on the Poisson's model and the characteristic earthquake model depending on time are discussed.
阐述了基于泊松模型以及时间相依的特征地震模型的地震危险性概率分析的基本原理与方法。
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