libration

基本解释

In this paper the way of static condensation is used to eliminate the other displacement couplinged with the vertical displacement and get the characteristic matrix equation of the vertical libration.
竝對在該模型下建立的動力矩陣用靜力凝聚法進行簡化，消去與竪曏位移耦聯的其它位移，分離出關於竪曏振動的特性矩陣方程；
Chaos and its control in the planar libration of a magnetic rigid spacecraft with internal damping in an elliptic orbit are investigated.
研究在具有內阻尼的磁性剛躰航天器在橢圓軌道上平麪天平動的混沌及其控制。
This article summarized some aspects of libration feeder's design installation modification and application in Tongkeng coarse Tin ore separated project.
對振動給料機在銅坑鑛粗粒拋廢工程中設計、安裝、改進和生産應用的情況進行了綜述。

a slight backwards and forwards movement of something, especially of planets etc. in the sky

振動
In succession, the author educed movement differential equation of reed valve plate from differential element of the plate according to theory of elastic plate libration.
接著本文根據彈性薄板振動理論,由薄板的微元躰導出簧片閥閥片的運動微分方程。
電子、通信與自動控制技術
振動
In this paper, based on researchful demand for one type satellite antenna, go deep into studying on deployable dynamics and flexible-distorted control, which would give well technical base to libration and stable expandedness during the outspread process of HTDA.
本文依據某在研衛星天線研制工作的需要,針對環形可展天線進行了展開動力學分析與展開過程智能控制研究,爲減小天線展開過程中的振動和平穩展開提供了技術支撐。
天文學
天平動
天秤動