C524 The First Customer

Like some hotel's ventilation system.

If the fan leaf principle of the dryer could be done according to it, would it be able to eliminate the noise problem?

Liu Yimeng also felt that it might be because she thought too much.

The person who created these hairdryers.

They specialized in researching, so how could they not think of these principles? And wait for her to think about it?

In short