According to these two points, this dissertation starts the research of the product model in FEM field, and puts forward the method of rapid variant design of part family's FEM model based on SML.
本文基于上述两点，对面向有限元领域的产品模型进行一定深度的研究，提出了基于事物特性表的零件族有限元模型快速变型设计方法。
The seismic signal acquired in the field is a complex of different waves and a time variant non stationary signal.
野外采集的地震信号是多种波的复合体，是一种时变的非平稳信号。
A restoration scheme is proposed for space-variant image degradation resulting from curvature of field in imaging systems.
提出了一种用于像场弯曲图像的复原方法，分析了该方法的原理。
However, most processes in industry are nonlinear, time-variant and bear uncertainty, thus research on nonlinear predictive control has become an important issue in control field.
然而在实际控制系统中，被控对象往往具有非线性、时变性和不确定性，因此，关于非线性预测控制的研究已成为控制工程界的重要研究课题。
Via variant of displacement harmonic oscillation, the exact electronic states in the semi-parabolic QW with an applied electric field are obtained.
通过位移谐振子变换，得到了系统中的电子态的精确解。
Via variant of displacement harmonic oscillation, the exact electronic states in the semi-parabolic QW with an applied electric field are obtained.
通过位移谐振子变换，得到了系统中的电子态的精确解。
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