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1·The third one is to let series be expressed by basic elementary function's power series expansion;

第三种方法是把待求级数用基本初等函数的幂级数展开式表示出来；

2·The 3d exact equations to solve free vibration of the cylindrical shell were obtained by using power series expansion method.

用幂级数展开法得到了求解该圆柱形梯度壳自由振动的三维精确公式。

3·Provided that the buckle as the sine-wave, the shape tolerance can be deduced by using the power series expansion as well as the curve integration.

假定波浪为正弦波，利用曲线积分和幂级数展开推导出板形公差。

4·Based on the theory of modal superposition and power series expansion, a modal superposition method for the sensitivity analysis of FRF is proposed in this paper.

基于模态展开和幂级数展开原理，提出了一种频响函数灵敏度分析的模态展开法。

5·A mixed scheme based on fixed mode expansion and power series expansion is suggested to simplify the calculation of the condensed dynamic rigidity of a structure.

本文提出一种基于模态展开和幂级数展开的混合方案，用于简化结构凝聚动刚度的计算。

6·The power series expansion method is utilized to study the collective behavior in dusty plasma consisting of cold dust particles and two-temperature isothermal ions.

用幂级数展开法研究了具有两种温度绝热离子的冷尘埃等离子体体系的集体行为。

7·In this paper a mixed expansion expression for dynamic flexibility of continuous systems is derived. The frist few terms of the expression are a sum of modes, the other terms are power series.

提出一种连续系统动柔度的混合展开表达式，它的前面几项是模态展开，其余各项是幂级数展开。