Biochemical oxygen demand Meaning In Bengali
Biochemical oxygen demand Meaning in Bengali. Biochemical oxygen demand শব্দের বাংলা অর্থ কি? English to Bangla online dictionary. Google Translate "Biochemical oxygen demand".
Meaning In Bengali
Biochemical oxygen demand :- জৈব রাসায়নিক অক্সিজেনের চাহিদা