例句與造句

1. the investigation of nonlinear oscillation is very important for the nonlinear science . many methods have been advanced to study weakly nonlinear system, including multiple scale method, kbm method, averaging method, and so on
   非線(xiàn)性振動(dòng)理論是非線(xiàn)性科學(xué)的一個(gè)重要研究?jī)?nèi)容，對(duì)于弱非線(xiàn)性常微分方程控制的動(dòng)力系統(tǒng)已經(jīng)有了許多求近似解的方法，如多尺度法、kbm法、平均法等等。
2. It's difficult to find weakly nonlinear system in a sentence. 用weakly nonlinear system造句挺難的