An image stabilizing system of telescope is designed. The prism position control was realized by a closed loop negative feedback.
为了提高望远镜影像稳定系统的防抖性能，设计了一种小型望远镜防抖系统。
Negative feedback loop — a closed path of action and reaction that self-limiting rather than self-reinforcing.
负反馈循环——在自我限制和自我增强的行为与反馈之间一条封闭的回路。
The mechanism of dynamic instability of rolling missile was analyzed by describing the dynamics of rolling missile as a closed loop with dynamic negative feedback.
将滚转导弹动力学系统描述为一个具有动态负反馈的闭环系统，分析了滚转导弹动态失稳的机理。
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