This article established a quite integrated the environmental quality evaluation index system city ecosystem from the angle of ecology. And evaluated the Quality of Shenyang environment.
从生态学的角度建立了较完整的城市生态环境质量评价指标体系，并对沈阳城市生态环境质量进行了评价。
From the Angle of security risk management, a study on determining methods of inspection cycles for city gas pipelines is carried out.
从安全风险管理的角度出发，研究了城市燃气管道检测周期的确定方法。
Abstract: the article analysed the current situation of city sculpture from the social Angle and the environment art Angle.
摘要：文章从社会角度以及环境艺术的角度对城市雕塑的现状进行深入剖析。
应用推荐