In primary treatment of urban wastewater treatment plant, the setup of thin bar screen was important, and vortex desilting basin was applied in more urban wastewater treatment plant.是什么意思_In primary treatment of urban wastewater treatment plant, the setup of thin bar screen was important, and vortex desilting basin was applied in more urban wastewater treatment plant.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句