Objective: to observe clinical effect and complications of treating ureterolith through aerodynamictrajectory lithotrity by ureterorenoscope (URS).
前言：目的：观察经输尿管肾镜行气压弹道碎石治疗输尿管结石的临床疗效及并发症。
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The mathematical model of reentry maneuvering trajectory is established. The fitting expression of aerodynamic coefficient function on velocity, attack of Angle and altitude is presented.
The flight trim aerodynamic characteristics of re-entry modules were calculated from on board-recorded inertial-platform accelerations and attitudes and from reconstructed trajectory data.