（1）当按下加速时可以加快小风扇的旋转速度。

（2）当按下反转时可以反着旋转，

（3）当按下减速时减速转动。

（4）当按下反转时可以反转

（5）可以暂停

（6）同时可以通过滚动条来控制小风扇的旋转速度，当拖动滑动条时可以-(1) when you press the acceleration can speed up a small fan rotation speed.

(2) when pressed against the rotation can be reversed,

(3) slow down when you press the deceleration rotation.

(4) can be reversed when you press the reverse

(5) may be suspended

(6) also can be a small scroll bar to control the fan rotation speed, when the sliders can be