3d杀百位十位个位杀号简介:Note: Knot is a special unit for sea-going ship sailing speed. It refers to the number of nautical miles traveled by sea-going ships per hour. One knot is equal to one nautical mile per hour. One nautical mile is approximately equal to less than two thousand meters, or two kilometers.
Note: Knot is a special unit for sea-going ship sailing speed. It refers to the number of nautical miles traveled by sea-going ships per hour. One knot is equal to one nautical mile per hour. One nautical mile is approximately equal to less than two thousand meters, or two kilometers.