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。

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This paper introduces the Siemens S7-200 PLC controller, expounds the design of the information collection, and discusses on the automatic water drainage system.

介绍了西门子s7—200 P LC控制器，阐述了信息采集过程，论述了自动排水系统的设计。

youdao

If no drainage system exists, the water table rises, bringing dissolved salts to the surface.

如果没有排水系统，地下水位就会上升，把溶解的盐带到地表。

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Thames Water has admitted its drainage system has been overwhelmed by recent heavy rain and flooding.

BBC: Thames Water says drainage system 'overwhelmed'

This is an area which lacks basic facilities e.g. toilets, clean water, drainage and sewerage system and other social problems.

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"In order to achieve this, the council needs the cooperation of Scottish Water to design and implement a drainage system in the waterfront, " he said.

BBC: Promise to act after flood damage