地下水是自然环境的组成部分，人类活动会导致地下水质的变化。
Groundwater is a part of nature environment. Mans activity can impact the quality of groundwater.
方法对医院污水进行生物氧化及臭氧消毒处理，观察水质的变化情况。
MethodsBy using biological oxidation and ozone disinfection for the treated sewage of hospital, effects on quality of the sewage were investigated.
掌握城市污水在回用于循环冷却水过程中水质的变化规律对于城市污水回用意义重大。
It's important for the municipal sewage reusing to grasp the change of the water quality in the course of the municipal sewage reusing as circulating cooling water.
地下水在补给过程中受到长期施用化肥影响而引起水质的变化已越来越受到人们的重视。
More and more people have been aware of groundwater quality change under the long-term utilization of chemical fertilizer in the recharge process.
因此，本文研究给水管网中水质的变化，尤其是微生物学水质指标的变化及影响因素具有重要的意义。
The diversification of water quality of the distribution network has been researched by this paper, especially the microbiology parameters and the influencing factors. This is a significant research.
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 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.
在对伊犁河伊宁市段历年水质状况进行综合评价的基础上，探讨了城市河段水质的变化规律、污染特征和成因。
The change law, pollution characteristics and causes of formation are discussed on the basis of synthetic evaluation of water quality situation over the years in Yining city section.
通过对郑州市西流湖近三年的原水水质监测分析，得出了该水源水质的变化规律，为保证水处理效果提供了科学依据。
After monitoring and analyzing it for three years, I have eventually found the various regularity of Xiliu Lake Water. It is a scientific reference to guarantee the effect of water treatment.
其他对于大堡礁及其生态系统的环境压力来自径流的水质问题，伴随着大规模珊瑚白化的气候变化以及棘冠海星的周期性爆发现象。
Other environmental pressures to the reef and its ecosystem include water quality from runoff, climate change accompanied by mass coral bleaching, and cyclic outbreaks of the crown-of-thorns starfish.
另一个威胁是气候变化，海洋的水温不断升高，水质日益酸化，海平面日益上升，所有这些变化都在威胁海洋生物。
Ocean waters are becoming warmer and more acidic, and sea levels are rising. All these changes threaten life in the oceans.
因此，预计的污水在水量和水质上会有变化，应最大限度地减少这一变化，以优化污水处理厂的效率。
The expected effluents will therefore undergo variations in quantity and quality that shall be minimized to optimize the efficiency of the wastewater treatment plant described hereafter.
研究表明在风应力的作用下，太湖水质同时存在水平和垂向变化，提出了太湖水质监测和评价也要考虑污染指标的垂向变化。
Taihu water quality in horizontal and vertical variety simultaneity is found, vertical variety of contamination index to be considered in the lake fluid matter monitors and evaluation is put forward.
本文主要分析了地下水水位变化引起的降落漏斗及地面沉降、水质恶化等环境地质问题。
This paper mainly analyses environmental geological problems such as descend funnel land subsidence. Water quality deterioration produced by groundwater level change.
现状评价是对比现状水质与标准之间的关系，而动态评价可反映水质变化的趋势。
The current situation evaluation is to contrast the current water quality with the water quality standard, the dynamic evaluation can reflect the trend of water quality change.
采用基于影像光谱信息建立的水质遥感模型对环厦门海域1989~2003年间的水色变化进行了分析。
The water colour variations of the coastal waters around Xiamen Island from 1989 to 2003 has been analysed through image-spectrum-based models without using in situ data.
分析了折流式酸化池在抗生素废水处理工程中的运行效果和水质变化对酸化作用的影响。
This paper analyzed the running effectiveness of a baffle acidification tank for treating the antibiotic wastewater, as well as the effect of a change in water quality on the acidification.
概述了刺参养殖水质变化特点、存在问题以及影响因素，提出了刺参养殖水质的调控和优化措施。
The characteristics, problems and influence factors of water quality during sea cucumber cultivation were summarized and the measures were proposed.
彬长矿区白垩系洛河组、环河组地下水水质在横向上和纵向上的都具有明显的变化规律。
Water quality of ground water in Luohe formation and Huanhe formation of Cretaceous system of Binchang mining area have clear change law along horizontal and vertical directions.
降雨和径流为三亚湾海域水质参数变化的控制因子。
The major control factor of water quality is precipitation and runoff.
就1996- 1998 年淀山湖全湖水质均值变化情况作了评述，对影响淀山湖水质变化的因素进行了分析和探讨。
The viriation of the average value of the water quality of Dianshanhu River in 1996-1998 and the effects on the viriation were analyzed.
稳定性是废水厌氧生物处理系统的重要特性，环境和水质条件变化是常见的失稳致因。
Stability is an important characteristic of anaerobic wastewater treatment systems, environmental and wastewater composition variations are usual causes of instability.
另一个威胁是气候变化，海洋的水温不断升高，水质日益酸化，海平面日益上升，所有这些变化都在威胁海洋生物。
Another threat is climate change. Ocean waters are becoming warmer and more acidic, and sea levels are rising. All these changes threaten life in the oceans.
针对回用污水的水质和处理要求，设计预处理工艺和运行参数，并对抗污染反渗透膜组件性能的变化规律进行研究。
Based on the water quality and requirement, the pretreatment process and operation parameter are designed, and the change rules of fouling-resistant reverse osmosis membranes is identified.
水质演化具有明显的逐月和年际变化规律；水质演化对环境酸化具有很好的响应。
The evolution of water quality is monthly and yearly, and the response to the acidification of environment is strong.
浅层承压水含水组的地下水质变化特征和潜水基本一致。
The variation characteristics of shallow confined groundwater are similar with phreatic water.
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。
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.
分析了三角帆蚌对水体的主要水质因子变化及鱼产量的影响。
The main water factors of fishpond water in lakeshore and the impact of fish yield were analyzed.
利用矩阵运算预测水质变化是一种简单的水质预测模型，计算简单、速度较快，是对复杂数值模拟方法的一种补充。
This method is a simplified model for water quality prediction with simply computation and rapid speed, so it is an effective complement to the complex numerical simulation.
利用矩阵运算预测水质变化是一种简单的水质预测模型，计算简单、速度较快，是对复杂数值模拟方法的一种补充。
This method is a simplified model for water quality prediction with simply computation and rapid speed, so it is an effective complement to the complex numerical simulation.
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