3.做大气压强实验大气既摸不着又看不见,大气压的存在很令我们费解。通过实验观察到大气压的存在是个好办法。你看,我用饮料瓶、抽气机、水槽、细针、漏斗等器材设计出以下实验:实验1如图1所示,用抽气机给饮料瓶抽气,发现饮料瓶变瘪了,说明大气压的存在。实验2如图2所示,将带有漏斗的塞子塞 3. Atmospheric pressure experiment The atmosphere is neither touched nor visible. The existence of atmospheric pressure makes it difficult for us to understand. It is a good idea to observe the presence of atmospheric pressure through experiments. You see, I designed the following experiment with beverage bottles, air extractors, sinks, needles, funnels, and other equipment: Experiment 1 As shown in Figure 1, the air pump was used to pump the air from the drink bottle and it was found that the drink bottle had become dirty. Explain the existence of atmospheric pressure. Experiment 2 As shown in Figure 2, plug the plug with a funnel