Wetland plants for water purification principle throughout the design area, mainly embodies the water from the wetland purifying water reuse process.
湿地植物对于水质的净化原理贯穿整个设计景区，主要体现了水体从湿地净化到水的再利用过程。
A flat plat fixed-bed reactor for gas purification was designed, its structure, working principle, function of screen plate, guide baffle, gas receiver and filtration cap were introduced.
设计了一种用于气体净化的平板式固定床反应器，介绍了该反应器的结构、工作原理以及网板、导向板、气体收集箱、过滤盖等组件的功能。
The paper introduces the principle, structure and used effects of the mercury waste gas purification unit.
本文介绍汞废气净化处理装置的原理、结构及使用效果。
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