The nonlinear partial differential equations are transformedinto ordinary differential equations by series expansion and solved numerically byfourth-order Runge-Kutta method.是什么意思_The nonlinear partial differential equations are transformedinto ordinary differential equations by series expansion and solved numerically byfourth-order Runge-Kutta method.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句