“中国城市老城区”的概念、定义、翻译、参考文献-科学参考

单词	中国城市老城区
释义	中国城市老城区 Encyclopedia 理学中国城市功能区释 the old urban area in China中国城市老城区整个城市发展最久的片区，也是城市历史的承载。又称旧城区。
随便看	singular perturbation singular perturbation method singular perturbation problem singular perturbation system singular perturbed system singular plane singular plane of support singular point singular point at infinity singular point of a curve singular point of a difference equation singular point of a differential equation singular point of a quadric singular point of a surface singular point of higher order singular point of order k singular probability distribution singular process singular projective transformation singular proposition singular q-cochain singular quadratic form singular quadric singular quadric hypersurface singular saddle point

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