Technology of step tongue volute is introduced and applied to a centrifugal fan for discharging lampblack.

介绍了阶梯蜗舌技术，并将其应用于一种排油烟的离心风机。

youdao

Technology of step tongue volute is introduced and applied to a centrifugal fan for discharging lampblack.

介绍了阶梯蜗舌技术，并将其应用于一种排油烟的离心风机。

youdao