新增上胶棍子自动清洗功能，清洗方便。
Incerase stick recently wash function voluntarily, it is more convenient to wash.
转动轴腔充气密封，消除了粉尘粘结现象。带自动清洗功能。
The rotation drive shaft is sealed with inflatable chamber, eliminating the dust coalescence phenomenon. There is a function for automatic cleaning.
反向冲洗系统，可以实现自动清洗功能，节约了频繁更换滤芯的成本，维护简易。
The automatic cleaning function can be realized by the back flush system, so that the cost for frequently replacing the filter element is saved, and the maintenance is simple and easy.
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