振动的

One of the features of a forced oscillation is the energy in the oscillation.

受迫振动的特点之一是振动的能量。

In this paper, the oscillation of forced neutral difference equations with positive and negative coefficients is studied and two sufficient conditions of this equation to be oscillatory are obtained.

研究了一类具有强迫项正负系数中立型差分方程的振动性，获得了方程振动的两个充分条件。

Characterization of the nature of the forced vibration amplitude of the forced vibration frequency and phase frequency characteristics (amplitude and phase frequency characteristics).

表征受迫振动的性质是受迫振动的振幅频率特性和相位频率特性。

Based on it, ground vibrations due to high speed railway traffic are calculated, and the law of them is also analyzed.

在此基础上计算了高速列车行驶条件下所产生的周围地面振动，并分析了地面振动的一般规律。

The equation of lattice vibration of one-dimensional monatomic lattice and the equation of longitudinal vibration of a uniform bar are discussed.

一维单原子链晶格振动与均匀杆自由纵振动的运动方程在数学上存在内在的联系。

Noncontact measuring of high speed rotating blade vibration is the most promising technology in the blade vibration measuring.

高速旋转叶片振动的非接触测量是叶片振动测量中极具发展前景的技术。

Reducing the consistence of emulsion is the most effective and economic measure to control the self-excited vibration.

针对带钢冷连轧机自激振动的生成机理，探讨了一系列抑制和消除轧机自激振动发生和发展的措施。

Airflow just for working medium place a premium on air flow excitation, which belong to self-excited vibration.

气流激振是由工作介质气体诱发的振动，属于自激振动的范畴。

Results of computations have been proved by road tests. Measures to eliminate shimmy are proposed.

仿真研究还从能量观点阐明了摆振发生的物理本质以及系统发生强迫振动或自激振动的内在原因。

The coupling system including the vibration of vehicles and bridge structure is set up based on the vehicle-bridge coupling element due to pavement's stochastic irregulation, the motion equation is solved by numerical integration method.

通过基于桥面随机不平顺的车桥耦合单元建立包含车辆振动和结构振动的耦合系统，用数值积分法求解动力学方程。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。