水质下降是在大堡礁污染的主要因素。
Declining water quality is a major factor in the pollution of the Great Barrier Reef.
沙坪坝区水量不足水质下降是一个突出的问题。
With ChinaWestDevelopment in Chongqing it brings negative effects. Water insufficiency and quality are serious problems.
在整流柜中应用加氢除氧装置后，解决了水管腐蚀和水质下降问题。
After applying hydrogenating deoxidization device in rectifier, the corrosion of hosepipe and the degradation of water quality were solved.
泰安市东武水源地近年来由于开采逐年增加、河床挖沙等因素的影响，水源地附近地下水环境出现了水位下降、水质退化等环境地质问题。
Due to the increase of water pumpage and the sand excavation at the river bed, the groundwater table became declined and water quality degraded in Dongwu water sources area, Tai'an City.
由于年久失修，原有水管生锈、漏水，村民饮用水质量下降，影响村民身体健康，又由于渗漏严重，分摊到村民的水损费很高。
The pipes had rusted and developed many leaks, so the water was of poor quality and even of possible harm to the villagers' health and the villagers even had to pay for the lost water.
在保证净水产量和水质的前提下，系统用电量和单耗下降了约40%。
The power and specific energy were reduced by 40%on the basis of production and quality of purified water being guaranteed.
全球两栖动物数量的下降清楚地说明全球空气和水质的污染。
The decline in the Numbers of amphibians worldwide clearly indicates the global pollution of water and air.
市郊小城镇河网水质急剧恶化，已成为新的水环境污染载体，使水体环境容量下降。
River water quality has deteriorated rapidly that has been a new carrier of pollutant to decrease environmental capacity of water.
本文根据常微分方程参数反问题的数学理论，将正交化方法同有限差分法结合用于确定水质模型参数，并与正则化方法、最速下降法和共轭梯度法作了比较。
The comparison of the calculation results show that orthogonal rule method is fast, simple and reliable, and is applicable to the calculation of the water quality modeling parameters.
通过在盐水生产中大量使用细盐，使盐水质量得到显著提高，精制剂用量下降，电耗降低。
The quality of brine was improved by lots of fine salt applied to brine production, and the quantity of refining agent and current consumption were reduced.
并通过现场试验，找到了合理的运行工况，从而在稳定水质的前提下降低成本。
Through on-the-spot experiment, the rational working condition can be found out, and the cost reduced on the premise of stabilizing the water nature.
近年来，湘江与洞庭湖水质同趋下降。
In recent years, the Xiangjiang River and Dongting Lake water quality has been deteriorating.
据中国官方媒体周四报道，环境官员说，三峡大坝周边一些水域的水质在持续下降。
Water quality continues to decline in some areas around China's Three Gorges Dam, state media reported on Thursday, citing environment officials.
由于工厂排泄物增多以及新兴城市截用的水量大增，导致黄河水位下降，水质在最近几年快速恶化。
It has seen its water quality deteriorate rapidly in the last few years as discharge from factories increases and water levels drop because of diversion for booming cities.
由于工厂排泄物增多以及新兴城市截用的水量大增，导致黄河水位下降，水质在最近几年快速恶化。
It has seen its water quality deteriorate rapidly in the last few years as discharge from factories increases and water levels drop because of diversion for booming cities.
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