翼伞作为一种新型气动力减速器日渐受到空间回收技术重视。
The gliding parachute systems as a kind of new aerodynamic decelerators, has been attached importance to space recovery technology increasingly.
由于减速器内的运动部件(旋转盘、控制杆)改进了空气动力学，结果使效率增加。
Improved aerodynamics due to the transfer of moving parts (swash plate, control rods) into the transmission results in an increase in efficiency.
而列车的减速运行，将使棚车所受到的气动力和倾覆力矩降低，有助于棚车安全通过风区桥梁。
When the train runs slowly, the aerodynamic forces acting on the box car decreases, which is helpful to the train passing safely the bridge of wind zone.
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