The equivalent model has good applicability for strong nonlinear Duffing systems.该等效模型对强非线性杜芬系统具有良好的适用性.This paper deals with analytical approximate solutions to the Duffing - Harmonic oscillator by a new method.用一种新方法研究...
她在1946年6月11号出生，取名叫珍妮·哈维。She was born Jenny Harvey on June 11, 1946.他说服弗吉尼娅以他的名字为婴儿取名。He persuaded Virginia to name the baby after him.他收录自世界各地的合唱音乐集取名为《声音》。His collection of choral music from around the world is called "...