You need to make the cupula fat when sticking.

吸住玻璃时，需要吸盘按平坦为止，以增强吸。

Some pumps works by suction.

有些泵是吸作的。

You need to make the cupula fat when sticking.

住玻璃时，需要用力按平坦为止，以增强力。

Some pumps works by suction.

有些泵是用力工作的。

You need to make the cupula fat when sticking.

住玻璃时，需要用力把盘按平坦为止，以力。

Some pumps works by suction.

有些泵是用力工作的。

You need to make the cupula fat when sticking.

吸住玻璃时，力把吸盘按平坦为止，以增强吸力。

Some pumps works by suction.

有些泵是吸力作的。

You need to make the cupula fat when sticking.

住玻璃时，需要把盘按平坦为止，以增强。

Some pumps works by suction.

有些泵是工作的。

You need to make the cupula fat when sticking.

吸住玻璃时，需要用力把吸盘按平坦为，强吸力。

Some pumps works by suction.

有些泵是用吸力工作的。

You need to make the cupula fat when sticking.

吸住玻璃时，需要用力把吸坦为止，以增强吸力。

Some pumps works by suction.

有些泵是用吸力工作的。

You need to make the cupula fat when sticking.

吸住玻，要用力把吸盘按平坦为止，以增强吸力。

Some pumps works by suction.

有些泵是用吸力工作的。

You need to make the cupula fat when sticking.

住玻璃时，需要把盘按平坦为止，以增强。

Some pumps works by suction.

有些泵是工作的。