A one-dimensional hydrodynamic and water quality model for river networks is developed, according to hydraulics and water quality features of water body within a tidal river network.

本文根据潮汐河网地区水体的水动力、水质特性，建立了河网一维水动力学和水质耦合模型。

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The main features of water and steam quality variations resulted from pollution of this kind have been pointed out and analysed.

分析了此类污染引起水汽品质变化的主要特征，为判断水源水是否受到有机物污染提供了简单实用的方法。

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Excellent water quality of the ultrasonic humidifier and direct evaporative humidifier of life and will have a significant impact on performance, some features humidifier with softened water.

水质过硬对超声波式加湿器和直接蒸发式加湿器的使用寿命及性能都会有很大影响，所以有些加湿器带有软化水功能。

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The scheme is an agri-environment scheme, which provides funding for farmers to manage their land in a way designed to benefit biodiversity and landscape features and improve the quality of water and soil.

BBC: Environment and Sustainability Committee