如果您改变了这些参数(如预迁移步骤中建议的那样)，您可以使用预迁移步骤3中保存的值将这些参数值恢复为原来的值。

If you changed these parameters, as recommended in the pre-migration steps, then you can use the values saved in step 3 of the pre-migration steps to adjust these parameters values back.

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对BOD5而言，应通过乘以某系数以恢复测量过程中受泥沙沉淀影响而降低的那部分数值。

As for BOD5, a certain coefficient is needed to revise the measured values in order to restore the reduced fraction due to the sediment deposition.

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分析和数值模拟了用瞬态简并四波混频实现光学啁啾反转的器件的主要参数对恢复信号波形和脉冲宽度能力的影响。

The influence of the principal parameters of optical chirp reversal devices on ability to restore signal wave form and pulse duration has been analysed and simulated.

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