1. The fishing net is to surround the water with a large amount of water and control all kinds of objects in the water within a limited range, then release the water through the mesh, collect the objects in the net, including most of the fish and some impurities, and finally discard the impurities and store the fish. This is how the fishing net catches fish.
2. Fish-net principle: fish will struggle instinctively after touching the net, causing the fish tail, fin or gill to be stuck in the net and unable to move. There are two elements of the sticky net used for fishing: the mesh should be thin and the hanging should be loose.