By using the black? Box model, the variation quantity of COD passing the aeration zone layer is determined.

通过黑箱模型，确定了COD经包气带地层的变化量。

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By using the black? Box model, the variation quantity of COD passing the aeration zone layer is determined.

通过黑箱模型，确定了COD经包气带地层的变化量。

youdao