求翻译：本文论述了人居环境科学的内涵和方法以及高效校园的需求和作用，据此，将河南农业大学老校区作为一个单独的人居环境来分析其五大系统的组成及其相互作用，校园外部开放空间的类型主要包括广场、公共运动场、可供人活动的绿地和园林区域，通过重点审视校园外部开放空间的现状并对其存在的质量和承载力问题进行的重点分析，以使人们对河南农业大学老校区的人居环境的构成及校园外部开放空间的现状及存在问题有一个总体的理解。是什么意思？

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