In algorithm 2, an auxiliary filter is used to detect EPC and DT and able to quicken the convergence of main filter at the same time.

算法2借助一个辅助滤波器来完成EPC和DT的检测，同时能加快主滤波器的收敛。

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The algorithm USES an adaptive filter to track the echo path, and an auxiliary filter to cancel the echo together with the adaptive filter.

该算法使用自适应滤波器跟踪回声信道，使用一个辅助滤波器和自适应滤波器一起完成回声消除。

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Air recoil and pnermatic auxiliary scraper: this technology effectively reduces the solids remained in the drum and effective resume the performance of the filter cloths.

气体反冲及气体辅助刮刀装置：这种新技术的应用，可以使残余滤饼降低最少，以便滤布再生。

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