chlorine residual meaning in Chinese

余氯

To detect chlorine residual in water in methyl red spectrophotometry
水中低浓度二氧化氯含量的紫外方法测定
Analysis of water used in boiler and cooling system . determination of free chlorine residuals
锅炉用水和冷却水分析方法余氯的测定
The research point that erosion of pipe network , scale , propagation of microoganism , byproduct of chlorine residual , environment second pollution and seepage of anticorrosive are primary reasons causing water quality pollution of second water supply system
对在调查检测中出现的污染问题进行分析研究，指出管网腐蚀、结垢、微生物繁殖、余氯产生的副产物、外界的二次污染以及防腐衬里渗出物这几个方面的因素是造成二次供水系统水质污染的主要原因。