Việt
sự xử lý nước thải
Anh
sewage treatment
effluent treatment
wastewater treatment
Đức
Abwasseraufbereitung
Abwasseraufbereitung /f/P_LIỆU/
[EN] sewage treatment
[VI] sự xử lý nước thải
Abwasseraufbereitung /f/ÔNMT/
[EN] wastewater treatment