Taking level curvet as an example, the landing stability of horse-vaulting is analyzed mechanically by stages, which is useful for scientific sports.
以水平腾跃为例,对跳马落地稳定性分阶段进行了力学分析,对科学体育运动有一定指导作用。
2
RTCA, an organization which advises the aviation industry, has recommended that all airlines ban such devices from being used during "critical" stages of flight, particularly take-off and landing.