The tendency and changes of water quality and pollution in the reservoirs are projected.
对污染趋势和水质变化进行了分析和预测；
Some of this water may be returned to the original source with changes in the quantity and quality of the water, but some may be used consumptively.
这种水有些经过水量和水质的处理，重新回到原来的水源地，有一些则被消耗掉了。
Based on a great amount of historical data to analyze the evolution of Guangzhou reach of Pearl River and the changes of water environmental quality qualitatively and quantitatively.
通过大量的历史数据，对珠江广州河段的演变和水环境质量的变化作了定性、定量分析。
When land use patterns changed, changes in soil quality were embodied in content of organic matter, soil water holding and supplying capacity, soil structure and soil microbial characteristics.
在土地利用方式变化过程中，土壤质量变化体现在有机质含量、土壤供持水能力、土壤结构状况和土壤微生物特性的变化上。
Test results show that pure octadecylamine is effective for lay-up protection of generating sets, causing no abnormal changes in steam-water quality during protection.
试验表明，纯十八胺用于机组停备用设备保护效果明显， 保护过程水汽品质无异常变化。
The influence of fire on water is indirectly manifested in that the post fire changes of vegetation, ground cover, soil and environment affect water cycle, water quality and aquatic lives.
火对水分的影响间接地表现在火后植被，地被物、土壤和环境的变化会影响水分循环、水质和水生生物。
It Generally reflects the changes of water quantity and quality with time.
该模型基本反映了通波塘水量水质的时变情况。
It explains in detail how concrete changes into clean water concrete and mirror surface concrete in the construction process, and solves the general quality problem of concrete.
文中详细介绍了混凝土在施工过程中如何成为清水混凝土和镜面混凝土，解决了混凝土的质量通病。
The fuzzy adaptive PID controller can indicate the changes of the water quality in sewage treatment, effectively control the volume of aeration and then cut down the operation costs.
采用模糊自适应PID制约对策，可以比较准确的反应污水水质的变化，合理制约曝气量，降低运行费用。
The effect of water quality changes on the desalting system of chemical water treatment at Beijing Yanshan Petrochemical Co.
论述了水质改变对北京燕山石油化工有限公司化学水处理装置除盐系统的影响。
The influences of added different soybean products on bread quality were studied, including water adsorption capacity, volume, sensory quality of bread as well as changes of bread texture and so on.
主要研究了添加不同大豆制品对面包品质的影响，包括面包吸水能力、面包体积、感观品质以及面包质构等的变化，同时研究了乳化剂对这种影响的消除作用。
Since 1990s, some harmful elements have been gradually increasing, and water quality will be worsening further with the decrease of water and environmental changes.
从上世纪九十年代开始在不断的变化，许多有害元素的检出率从无到有逐渐增加，随着水量减少和环境的变化，水质将进一步恶化。
From the changes of the biological indicators, it could be able to predict the trends of changes of river water quality and seasonal variations.
从底栖动物指示种的变化，可预测水质变化的趋势以及季节性的差异。
It requires change with changes in feed water quality conditions, the decolorization effect of hydrophilic poor, COD removal rate.
缺点是需随着水质变化改变投料条件，对亲水性染料的脱色效果差，cod去除率低。
Higher water temperatures, and changes in extremes, including floods and droughts are projected to affect water quality and exacerbate many forms of water pollution.
预计较高的水温和极端变化，包括洪旱等，将影响水质并加剧水污染；
Water quality of printing and dyeing wastewater changes quickly, with high colority and difficult to be degraded only by bio-treatment.
纺织印染废水水质变化大、色度高，直接生物处理难度大。
Water quality of printing and dyeing wastewater changes quickly, with high colority and difficult to be degraded only by bio-treatment.
纺织印染废水水质变化大、色度高，直接生物处理难度大。
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