We change the impact systems into a nonsmooth dynamical systems, we obtain criticalpoints using nonsmooth saddle point theorem which corresponding to our subharmonic solu-tions.是什么意思_We change the impact systems into a nonsmooth dynamical systems, we obtain criticalpoints using nonsmooth saddle point theorem which corresponding to our subharmonic solu-tions.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句