expansion into powerseries的用法和樣例：
例句
- 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.
基於模態展開和冪級數展開原理，提出了一種頻響函數靈敏度分析的模態展開法。 - A Taylor series expansion of the transfer function yields the number of paths of a given length between the source and the destination.
傳輸方程的泰勒級數展開可顯示信源和終點間所存在的給定長度的路徑數。
