The paper discusses the invariant set and attractor for a class of non-autonomous delay differential system. We estimate the existence range of the invariant set and its attractor.是什么意思_The paper discusses the invariant set and attractor for a class of non-autonomous delay differential system. We estimate the existence range of the invariant set and its attractor.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句