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(1)��^�ߵ�ԭˮ,��COD�s��1000mg/L,��

(2)̎��еȝ�ȳ�ˮ��COD�s��500mg/L,��

(3)̎��ĵ͵ȝ�ȳ�ˮ,��COD�s��150mg/L��

(4)̎��_�˵ĳ�ˮ,��COD�s��30mg/L,��

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