1. BOD R1 BOD R2 AZ DO 10 AZ DO 30 R 7512 BOD BT 2 H1 R2 1 1 D0 DOo R1 30 1 800 R2 30 1 800 DO 10 3 200 DO 30 30 8 000 DO 30 6 600 6 900 2 DO RW 1 5 1 z 2 1 5 D0 DOs 5 2 2. DO gt FE gt DO DO BOD B OD DOo D0Os DO D0 3. 35 10 5kc BOD Set River Water BOD K i PAC 5 D0 BOD 5 20 C J1S BOD5 260LX200WX110H mm 1 1kg 5 KAN DO 1 9 mg 15 DO 30 R1 R2 6