Compared with traditional direct implementation and folded filter, polyphase implementation has the advantage of requiring fewer chip resources.

与传统的直接实现形式和折叠滤波器等改进形式相比，多相形式具有占用资源少的优点。

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Folded filter cartridge with internal and external supporting elements, which has good resistance to destroy and long service life and can increase effective filtering area, is adopted.

采用带内外支承体的折叠式滤心结构，滤心抗破坏能力强，有效过滤面积大，使用寿命长；

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Folded filter cartridge with internal and external supporting elements, which has good resistance to destroy and long service life and can increase effective filtering area, is adopted.

采用带内外支承体的折叠式滤心结构，滤心抗破坏能力强，有效过滤面积大，使用寿命长；

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