Case study was also carried out for proper design of the concave-down greenbelt based on the 20-year statistical data of the hourly rainfall characteristic parameters in Shanghai area.
提出了评估城市下凹式绿地蓄渗降雨径流长期运行效率的概率分析方法，并基于上海市近20年的小时降雨特性参数统计数据对上海市下凹式绿地的设计进行实例研究。
When water is pumped out of a chamber below the plate creating negative pressure, the stretchable sensors are pulled down, producing a concave shape.
当水从板下的一个腔中被抽出来产生负压时，可伸缩的传感器被向下拉，形成一个凹形。
The most obvious response of building under uneven settlement occurs at the bottom story; and its ability to resist down concave deformation is stronger than that to upper convex deformation.
不均匀沉降作用下建筑物底层反应最明显，且抵抗下凹变形的能力比抵抗上凸变形的强；
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