That's why we use atomic - or microwave - clocks, which measure the vibration of a caesium atom to keep time, just like the tiny swinging of a pendulum.
这也是我们应用原子钟或微波钟的原因，它们通过测量铯原子的摆动来计时，就像一个钟摆在轻微摆动。
The vibration of the nonlinear pendulum is studied by means of linearization and correction method, the curves of the period ratio and the relative error is plotted.
应用线化和校正方法，研究了单摆的非线性振动，作出了周期比和相对误差随摆角的变化曲线。
The forced vibration of pendulum is described by four-dimensional phase space and the fourth order autonomous ordinary differential equation.
本文用四维相空间和四阶自洽常微分方程描写了单摆的受迫振动。
In addition to watch though shock, but strong impact in the outside world is easy to make the pendulum shaft tip or gear shaft broken, can make the vibration of the walking speed needle.
另外手表虽防震，但在外界的冲击力较强时易使摆轴尖或轮系轴颈折断，亦可使快慢针震动影响走时。
Only is its angular displacements small enough, the motion of three-wire pendulum just has the characters of harmonic vibration.
只有当它的最大角位移足够时，三线摆的运动才具有谐振动的特征。
In order to provide theoretical basis for the parameter of design on a new type of vibration generator, this parameter of design is seen as a double-body pendulum and mathematical model.
为了给一种新型振动机的参数设计提供理论依据，将其抽象为双物理摆的力学、数学模型。
Problems regarding nonlinear natural vibration of pendulum spring under foundation displacement excitation are studied.
研究基础位移作用下悬挂弹簧的非线性固有振动问题。
New variable is introduced based on energetic equation, the period of vibration of three wire pendulum is studied using the method of rotating vector.
由能量方程出发，引入新变量，用旋转矢量法讨论了三线摆大角度摆动时的周期。
Methods According to vibration theory the relationship between the period of a torsional pendulum and the moment of inertia of a part is established and the test method is given.
根据振动理论建立了零部件单摆振动周期和转动惯量的关系，给出了实际测量方法。
Furthermore, the analysis of the vibration provides an basis for dealing with the distortion signal of the Angle coder of the pendulum apparatus.
同时，该振动过程分析将为处理冲击摆中角编码器失真信号，提供一定的依据。
The inverted pendulum, folded pendulum, X pendulum and conical pendulum ultra-low frequency vibration isolation systems, which are developed from single pendulum, are introduced.
介绍了由单摆改进而成的倒摆、折叠摆、x摆和锥摆等超低频水平隔振系统。
According to the cycle formula of simple harmonic vibration, the cycle formula of simple pendulum could be figured out.
根据简谐运动的周期公式，得到单摆的周期公式。
According to the cycle formula of simple harmonic vibration, the cycle formula of simple pendulum could be figured out.
根据简谐运动的周期公式，得到单摆的周期公式。
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