短語詞組短語singularly perturbed theory 奇攝動理論singularly perturbed midcourse guidance 變結(jié)搆制導(dǎo)律Singularly perturbed parabolic problem 奇異攝動拋物問題singularly perturbed system 奇異攝動系統(tǒng)singularly perturbed problem 奇異攝動問題singular singularly perturbed 奇異奇攝動nonlinear singularly perturbed systems 非線性奇異攝動系統(tǒng)singularly perturbed difference equations 奇異攝動差分方程 返回 singularly perturbed