We hope that this paper has referential significance for accelerating the construction of center fishing port.

To reiterate a very important point, three positions for a new FMO are necessary for the Minor Planet Center (MPC) to determine if a FMO's earth relative speed is accelerating or decelerating.

To some extent, it was suburbanization that resulted in multi-center urban spatial structure and megalopolises, consequently accelerating the formation of metropolitan tourism belts.