I think it's the most informative explanation on rotating biological contactor that I have ever seen. Well narrated about the process and mechanism.your way of presentation made this complex process simple and interesting
👍👍👍nice cls☺
I think it's the most informative explanation on rotating biological contactor that I have ever seen. Well narrated about the process and mechanism.your way of presentation made this complex process simple and interesting
👍👍👍nice cls☺