According to the situation of water quality, you can select different equipments to constitute the pretreatment system in the on-line monitoring devices, such as the analyzer for TOC/COD monitoring, ammonia nitrogen and phosphorus .是什么意思_According to the situation of water quality, you can select different equipments to constitute the pretreatment system in the on-line monitoring devices, such as the analyzer for TOC/COD monitoring, ammonia nitrogen and phosphorus .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句