The DO distribution and wastewater treatment effect were compared in traditional wetland and three-segment subsurface flow wetland supplying oxygen by natural or slight-aeration in contact gutters.
比较了传统水平流湿地、三段式自然富氧潜流湿地及三段式微曝气潜流湿地的DO分布及对生活污水的处理效果。
Hornfels, skarnization, troilite and gold mineralization were formed in their contact segment.
接触部位形成角岩、矽卡岩化，并发生磁铁矿、硫铁矿及金矿化。
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