求翻译：试表明，江苏省如皋、靖江、淮安采用的垂直流式人工湿地效果较好，其构造由区、处理区、出水区三部分组成，并且底部做了防渗层。是什么意思？

Test shows that Jiangsu Province, Rugao, Jingjiang, Huai'an using vertical-flow constructed wetland is better, its structure from the area, treatment area, water area of ​​three parts, and made impermeable bottom layer.

test showed that, Jiangsu RuGao, Jingjiang, Huaian using the vertical flow constructed wetland was more effective, constructed by the district, processing zone composed of three parts, the water district is built at the bottom, and impermeable layer.

Tries to indicate, Jiangsu Province jukao, Jingjiang, Huai An use the vertical current type artificial wetland effect is good, its structure by the area, the processing area, the water district three parts is composed, and the base did has guarded against infiltrates the level.

Testing shows that Rugao, Jiangsu Province, Jingjiang, Huaian used vertical-flow constructed wetland for better effect, constructed by area, area, water area consists of three parts, and made impermeable layer at the bottom.

Testing shows that Rugao, Jiangsu Province, Jingjiang, Huaian used vertical-flow constructed wetland for better effect, constructed by area, area, water area consists of three parts, and made impermeable layer at the bottom.