A general formula of relativistic Doppler shift is obtained from Lorentz transformation, and the supersonicmotion is discussed as well.
利用洛伦兹变换导出了相对论性的多普勒颇移的普遍公式，并且讨论了波源的超音速运动情况。
2
Supersonic and enchanted the graph can show the room is removed clearly, before the motion of next wall, sidewall, walls and rear wall.
超声心动图可以清楚地显示室间隔、前壁、侧壁、下壁和后壁的运动。
3
Its properties depending on the non-linear interaction potentials, there are the supersonic, sonic and subsonic soliton motion in the protein molecules.