当聪明的渔夫看见水中的鱼时,会拿着鱼叉向看到的鱼的下方叉去,这样能轻松地叉到鱼。为什么渔夫不会叉看到的鱼而叉向看到的鱼的下方呢?这就是水的折射问题。问题提出:当我们观察水中的物体深度(简称“视深度”)时,会发觉它比物体在水底的实际深度浅得多,好像 When a clever fisherman sees the fish in the water, he will take a harpoon and cross it under the fish he sees, so that he can easily fish it. Why is the fisherman not forking the fish and forking it under the fish he saw? This is the problem of water refraction. The question is raised: When we observe the depth of an object in the water (abbreviated as “depth of view”), it will be found to be much shallower than the actual depth of the object in the water, as if