orbit curve
2.Qinshen the railway special line of passenger transport the rear law concrete case beam of prestressing force is our country adopt the speed above single line and straight curve beam of 200 km of passenger train for the first time ,have speed is high characteristic high,for line orbit,ride comfort asks.
3.Subsequently, using the mass-energy relation, the general expression of the solution of the energy-curvature equation on the medium shell curve method is discussed, and the general expression of Binet equation about orbit of the celestial bodies motion is given. Further more, the analysis solutions of the advance of the perihelion of planets and bending of light for the gravitational force are given.
