此装置布局：位于底部是一只酒精灯，中部是一个类似于铁架台的东西夹着一只

The layout of this device: at the bottom is an alcohol lamp, in the middle is a round-bottomed flask containing less than half a bottle of water held by something similar to an iron stand, and on the upper part is a large cup with a nozzle and a nozzle Containing a rubber neck, there is a circular cushion with a hole inside the cup connected to a ball iron chain, the iron chain goes deep into the water in the beaker through the tube under the cup, and the top of the cup is a black concave lid.

The device layout: located at the bottom is an alcohol lamp, the middle is a similar to the iron frame of something with a small bottle of water with a round bottom flake, the upper part is a large cup with a tube under the mouth, the tube contains a rubber neck, the cup inside a round mat with a hole to connect a ball chain, the chain through the pipe below the cup deep into the water in the berries, above the cup is a black lid.

This device layout: at the bottom is an alcohol lamp, in the middle is something similar to an iron stand, holding a round bottom flask containing less than half a bottle of water, and the upper part is a large cup with a nozzle at the bottom, which contains a rubber neck. Inside the cup, there is a round cushion with holes connected with a ball iron chain. The iron chain goes deep into the water in the beaker through the pipe under the cup The square is a black with concave lid.<br>