vehicle range
9.In order to study how the cross winds in flat open country affect the aerodynamic characteristic of each EMU vehicle,experiment of EMU model composed of 3 vehicles is conducted in a 8 m×6 m wind tunnel,the author analyzes the data of the experiment,concluding that when the cross winds speed is in the range of 15 m/s~25 m/s,the EMU train set is stable laterally with running speed not higher than 300 km/h.
10.According to the experiment of the explosion of liquid propellant,a method is raised to evaluate the range of the pollution of poisonous gas on the space vehicle launching site when a rocket explodes. The diffusion distance and the affact time of the poisonous gas are computed when a typical rocket explodes in the condition of a given wind velocity, a given fly altitude and different season.

