Use a sharp knife or some scissors to cut a hole in one side of the cup, near the base.
用一把锋利的刀或剪刀在杯子的一端剪开一个洞。
The control mechanism is connected to the evacuation hole of the vacuum cup and is used for controlling the vacuum opening or vacuum closing of the vacuum cup.
控制机构连接至真空吸盘的抽真空孔，用以控制真空吸盘的真空开启或真空关闭。
应用推荐