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研究平动点卫星的轨道保持问题。This paper studies station keeping strategy for libration point missions.

特别对库水与坝体耦合振动问题进行了详细的阐述。Especially, the author researches the coupling libration of water and dam detailedly.

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提出控制卫星天平动角的算法，用图示对该算法作了说明。A possibility of applications of proposed algorithms to control libration angle of satellite was illustrated.

介绍一种基于CAN总线的振动数据采集监测系统，重点介绍其CAN总线通信模块的设计。A kind of design for communication module of the libration data monitoring system based on CAN bus is introduced.

本文对共线平动点任务节能轨道设计与优化进行了研究。In this dissertation, low energy trajectory design and optimization for collinear libration point missions is studied.

对几种电压标准自校系统方法进行了分析探讨，并对它们逐个作了研究说明。This paper analyzes some kinds of methods for voltage reference self-ca libration system and explains them one by one.

此外，传动结构中的齿槽间隙可以淹没转子振动幅度，以减小负载的抖动。Moreover alveolus clearances in transmission machine could submerge the rotor's libration so as to decrease loads' dithering.

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月球实际半径根据其位置角度函数和缓慢摆动而变化，由于其边缘轮廓的不确定性。The Moon's actual radius varies as a function of position angle and libration because of the irregularity in the limb profile.

通过理论推导、研究和分析，得出了加配重复摆振动周期的变化规律。Varying regularity of libration period on overweighted compound pendulum was obtained by theoretical reasoning?research and analysis.

研究在具有内阻尼的磁性刚体航天器在椭圆轨道上平面天平动的混沌及其控制。Chaos and its control in the planar libration of a magnetic rigid spacecraft with internal damping in an elliptic orbit are investigated.

一个人民解放军经过科比的广告牌，这是一家德国的体育设备厂的描绘。People's Libration Army soldier walks past an advertisement board in Beijing for a German sports equipment manufacturer featuring Kobe Bryant.

轴承座位移振动在断电瞬间突然加强，在断电后一段时间转轴振动才发生变化。The vibrant displacement of bearing seat is intensified at the moment of lose power, but after a certain period rotor shaft libration changes.

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通过优化设计而实现的高钢性机架构造，保证了织机高速、强劲、低振动的稳定打纬。Through optimizing design to fulfill strong steel structure, and to ensure the machine weaving abb with high speed, strong power and small libration.

本文第一次提出了电机维修过程中也应控制电机振动及噪声的概念。The concept of controlling electrical machinery libration and noises in the process of electrical machinery maintenance is first presented in the paper.

对振动给料机在铜坑矿粗粒抛废工程中设计、安装、改进和生产应用的情况进行了综述。This article summarized some aspects of libration feeder's design installation modification and application in Tongkeng coarse Tin ore separated project.

商用车发动机在怠速和工作中会产生较大的振动和噪声，分析其相关零部件的振动特性就显得尤为重要。The libration characteristic of the commercial engine parts is in great importance because of the libration and noise in the idle Speed and working process.

本文以此为背景，在我国平动点技术研究起步伊始之时，重点研究平动点周期轨道及不变流形转移轨道设计问题。With domestic research having just been started up, this thesis focused mainly on the design method of libration periodic orbits and related invariant manifolds.

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由计算知，杆柱的初始缺陷、杆柱振动及离心力是造成抽油杆柱偏磨的主要原因。By the calculation, the primal fault of the sucker rod, the libration of the sucker rod and the centrifugal force are the main cause of sucker rod deviating-fraction.

这种类型的轨道可以离共线平动点较近，那么只需要在控制过程中考虑线性项即可，控制条件简单。Orbits of this type can be positioned near collinear libration points, and for simplicity it is adequate to take linear terms into consideration in the control process.

研究在地球万有引力场和磁场中具有结构内阻尼的磁性刚体航天器在近赤道椭圆轨道上平面天平动的混沌行为及其控制。Chaotic planar libration and its control of a magnetic rigid spacecraft with internal damping in an elliptic orbit near the equatorial plane of the earth are investigated.