The steps of how the submarine robot repairs the submarine cable The importance of submarine cables The reason why people can communicate and surf the Internet across the mountains and the sea is due to the role of submarine optical cables. Submarine optical cable, also known as submarine communication cable, is a wire wrapped with insulating material and laid on the seabed to establish telecommunication transmission between countries. The submarine optical cable undertakes 90% of the current international communication business in the world and is the main carrier of information communication in the world today. At present, there are about...