Perhaps the suction power slide on the handgrip is open.

可能握把上的吸力滑块已打开。

youdao

Then we design the slide operation and the power adjustment handle.

还有控制风流动的卡关，和调节风力大小的手柄。

youdao

Then we design the slide operation and the power adjustment handle.

还有控制风流动的卡关，和调节风力大小的手柄。

youdao