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.
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