课征点
the mathematical modeling and error analysis for the measurement of the impact points in an acoustic vertical target
声学立靶弹着点测试数学模型与误差分析
research and implement of testing impact points based on acoustics target sensor
基于声学靶传感器的弹着点测试研究与实现
transferring impact points to replacement vehicle parts
车辆部件更换后碰撞点的转移
In addition, the locus of perigee and lunar impact points are given and the characteristic of the locus with variation of the transfer time are discussed.
给出了这些转移轨道的近地点和着月点的轨迹,并讨论了轨迹随飞行时间变化的特性。
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