城市不同绿地类型对周围环境的影响各异，对人体健康的影响也不同。
The influences of different green space types on environment and human health are significantly different.
而公园绿地是城市绿地系统中的一个主要类型。
But the park is a main type that city is greenly greenly system inside.
介绍绿地、花坛的构造、排水系统的类型以及排水系统的设计计算方法。
Also the design and calculation of their water drainage system are added.
介绍绿地、花坛的构造、排水系统的类型以及排水系统的设计计算方法。
Also the design and calculation of their water drainage system are added.
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