环城林带建设对于改善城市生态环境，提升城市品位，改善人居环境具有十分重要意义。
The forest belt construction has very important meanings in improving the urban ecological environment, promoting the urban grade around the city, and improving the human settlements environment.
因此选择沉井群的设计与施工作为课题进行研究和探讨，具有十分重要意义和实用价值。
So it's very significant meaning and practical value to select designment and construction as task to make research on.
所以，采用系统分析技术建立规划模型，优化城市生活垃圾管理系统具有十分重要意义。
Adoption of systematic analysis technology to build programming model is important and useful for optimization of MSWMS.
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