从分析地震能积累的动态方程入手，推导出了估计强震复现时间的分形估计法。
Based on the dynamic equation of the seismic energy accumulation, a method for estimating the strong earthquake recurrence period by the fractal principle has been deduced in this paper.
利用几何学知识推导出了确定电力系统实用动态安全域（PDSR）临界超平面的截距法。
An intercept method to determine critical hyper-planes of practical dynamic security region (PDSR) of power system is developed by use of knowledge of geometry.
根据废水处理理论并分析比较活性污泥法有关模式的假设和推导过程，作者导出了稳态条件下厌氧流化床的动力学模式。文中还提出稳态和动态的流化模式。
Based on the theory of wastewater treatment and relevant models of activated sludge processes, a kinetic model of the anaerobic fluidized bed reactor under steady state conditions is developed.
应用过采样和数字锁相检测技术能提高动态光谱法中光电脉搏波信号的检测精度， 文章对此进行了理论推导。
The precision of measure can be advanced by making use of over-sampling and lock-in amplifying on the pick-up of photoelectric pulse wave in DS detection.
然后，根据频域分析法，得出整流器的一阶惯性模型，由此推导出系统的频域控制模型。此外，为了提高系统的动态性能，提出一种新型负载电流前馈控制方案。
Then according to frequency domain control method we educed the rectifier's one-order inertia model and deduced the system's frequency domain control model.
然后，根据频域分析法，得出整流器的一阶惯性模型，由此推导出系统的频域控制模型。此外，为了提高系统的动态性能，提出一种新型负载电流前馈控制方案。
Then according to frequency domain control method we educed the rectifier's one-order inertia model and deduced the system's frequency domain control model.
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