The index of fecal coliform had great impact on source water quality. In recent years, the water quality in Yongjiang River kept stable and there was no tendency of deterioration.
粪大肠菌群指标对邕江水源水质状况影响最大，近年来邕江水源的水质总体上保持稳定，未出现劣变的趋势。
Drum water level is an important index to ensure the safety and stable operation for industrial boilers.
汽包水位是工业锅炉安全、稳定运行的重要指标。
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