系统作为一个整体，动量是守恒的。
It's just the system as a whole for which the momentum is then conserved.
在人造卫星的姿态控制中，广泛地采用偏置动量轮控制系统。
A momentum wheel control system is widely used for the attitude control of satellite.
研究偏置动量姿态控制系统中的集成能量与姿态控制问题。
The integrated power and attitude control for a bias momentum attitude control system is investigated.
本文定义了系统的摄动量，并对其性质进行了研究。
In this paper, the perturbation measure of systems is defined and studied at its quality.
本文定义了系统的摄动量，并对其性质进行了研究。
In this paper, the perturbation measure of systems is defined and studied at its quality.
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