主要股指出现较大振幅的上下波动。
The major indexes bounced up and down in another volatile day.
单波频率加快、最大振幅增大；
The frequency and maximum amplitude of single waves also obviously increased.
构造了单摆大振幅振动的高精度解析逼近周期和周期解。
Analytical approximate periods and periodic solutions to large amplitude oscillation of a simple pendulum are constructed using a new method.
分析了主共振的振型、最大振幅、稳定性和振幅突变性。
The shapes, maximum amplitude, stability and amplitude jump of main resonance are analyzed.
分析了主共振的振型、最大振幅、稳定性和振幅突变性。
The maximum amplitude, stability and amplitude jump of main resonance describe the primary characters of a drive shaft.
本文首先用最小作用量原理推导出扁薄锥壳大振幅的变分方程。
In this paper, large amplitude variational equation of conical shallow thin shells is derived according to the principle of minimal action quantity.
传动轴主共振的最大振幅、稳定性、振幅突变性是其主要特性。
The maximum amplitude, stability and amplitude jump of main resonance describe the primary characters of a drive shaft.
适当降低振频，增大振幅和非正弦振动因子可抑制表面裂纹形成。
The surface cracks formation can be restrained by decreasing oscillation frequency and increasing amplitude and nonsinusoidal oscillation factor properly.
随着氢气含量的减少，起振临界当量比变大，热声振荡的最大振幅变大。
With reduced the concentration of hydrogen, the oscillation start critical equivalence ratio is higher and the maximum amplitude of thermoacoustic oscillation is larger.
小振幅时的磨损机制符合疲劳脱层理论，而大振幅时则主要是磨粒磨损机制。
The wear mechanism is fatigue flake when in little amplitude, while abrasive in bigger amplitude.
由各站气压10分钟最大振幅变化看其强度大小及出现时间都与降水有较好关系。
From the 10min variation of the greatest amplitude of air pressure at each station, the intensity and time of occurrence are well related with rainfall.
同时，通过对相关场资料的分析，揭示了引起这种较大振幅水位波动的主要原因。
Meanwhile, by an analysis of the factors giving rise to the fluctuation of sea level the main cause of the larger amplitude fluctuations of sea level is identified.
算例表明，本文方法对于小振幅有较高的精度，对于较大振幅其结果也是令人满意的。
The examples show that the method has high accuracy for small amplitude problems and the results for rather large amplitude are satisfactory.
率很高，太阳风能量投入是显而易见的大振幅的等离子体波和大型磁结构的磁强计测量了整个遭遇。
The high rate of solar wind energy input was evident in the great amplitude of the plasma waves and the large magnetic structures measured by the Magnetometer throughout the encounter.
这样，这些大行星就具有大振幅与短的波长“正弦波”曲线，而这两种特性让它们能更容易地被观察到。
They thus have sine waves with large amplitudes and short wavelengths, both of which make them easy to see.
大振幅试验，非定常空气动力，空气动力模型，洞壁干扰，动导数仿真，数学模型，模糊逻辑，飞行仿真。
Large amplitude test, Unsteady aerodynamic, Wall influence, dynamic derivative simulating, Mathematic model, Fuzzy logic, Aerodynamicmodeling, Flight simulating.
采用数值计算方法分析了具有中心刚性质量的极正交各向异性环形薄板在均匀升温下的大振幅振动和热过屈曲。
A computational analysis of the non linear vibration and thermal buckling of a uniformly heated polar orthotropic annular plate is presented.
分析结果表明，热气导管的设计工况完全处于稳定区内，即其在设计工况下运行时，不会产生大振幅的流致振动。
The analysis results are that the design condition of hot gas conduit falls in the stability area, in other word, running at design condition, the flow induced large amplitude vibration doesn't exist.
简要介绍了单自由度非线性保守系统作大振幅振动时周期的计算方法，并给出了几个常见典型振动问题的周期公式。
A calculation for period of a single freedom nonlinear conservative system vibrating in a large amplitude is performed, and the period formulae of some typical vibration problems are presented.
当原始数据的信噪比较低时， 阈值的选择受大振幅噪音的影响，使压缩比略有下降，但仍然能够保持信号基本不失真。
The results showed that, enen with compression ratio of more than 200, the data could be reconstracted with out significant loss of useful signals by the method.
实验结果表明，螺旋管管束的流体诱发振动响应与直管相比存在一定的差别； 200MW高温气冷堆蒸汽发生器的设计避免了管束的大振幅振动。
The experimental results reveal the difference between helical tubes and straight tubes on flow induced vibration, and the design for 200MW HTR steam generator avoids large amplitude vibration.
实验结果表明，螺旋管管束的流体诱发振动响应与直管相比存在一定的差别； 200MW高温气冷堆蒸汽发生器的设计避免了管束的大振幅振动。
The experimental results reveal the difference between helical tubes and straight tubes on flow induced vibration, and the design for 200MW HTR steam generator avoids large amplitude vibration.
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