Scaling, cleaning and water quality stability disposal technology of the circulation cooling water system of the oxygen making works are presented.

介绍了制氧站循环冷却水系统除垢清洗及水质稳定技术处理。

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Spring flood period of poor water quality, water quality levels ranged between class II and III , other times, water quality stability in the level II .

春汛期间水质较差介于II类和III类之间，平水期和冰封期稳定于II类水质。

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It is shown that the water constriction is effective on improving the energy density and stability of the arc, so the cutting quality can be improved also.

结果表明，施加水再压缩对提高等离子弧柱的能量密度和稳定性、进而提高陶瓷件切割质量非常有效。

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Overall, each of the six ecosystem processes examined which included the maintenance of stability and improved water quality worked better when there were more species than when there were fewer.

ECONOMIST: Marine biodiversity