查询词典 amplitude

Secondly,the air damping of CFRP cable of free vibrationg and forced vibration induced by lateral forces of the wind was analyzed and the effect of vibration amplitude as well as wind speed on the damping of CFRP cable was discussed based on the comparison with that of steel cable.

其次，对CFRP斜拉索自振状态及横向静风作用下的空气阻尼特性进行了计算分析，通过与钢索计算结果的对比，讨论了拉索振幅及风速对CFRP斜拉索阻尼特性的影响。

An extended hyperbolic mild-slope equation, which can take such terms as wind input, bottom friction and nonlinearity of wave into account, here has been deduced into a parabolic one in the form of a series of governing equations described with complex amplitude. It became a complete wave model when integrated with corresponding physical and imaginary boundaries, and can be solved through the improved Crank-Nicholson or the well known Alternating Direction Implicit difference method, both of which can accelerate the convergent speed , expand limitation of the mathematical method and improve the quality of the solution.

本文基于综合考虑底摩阻、风能输入及非线性影响的推广双曲型缓坡方程，将其进行转换，产生一个演变方程，其复振幅控制方程为抛物线性，并采用ADI差分格式、改进的Crank-Nicholson格式及相应的物理和虚拟边界条件进行求解，以提高数值模拟的适用性、数值计算的稳定性、收敛速度及精度。

The error sources in altimeter data processing are analyzed, the effect and the amplitude of errors are discussed.

分析了卫星测高数据处理的各项误差源的产生，讨论了各种误差所造成的影响及其量级

NTSC uses a quadrature amplitude modulation with a suppressed color carrier and works with amotion frequency of approximately 30 Hz. A picture consists of 525 lines.

NTSC的色彩载波使用接近4.9MHz或3.57MHz的频率，它使用颜色载波进行正交调幅，画面运动频率约为30Hz，每幅画面有525线。

Mode of amplitude modulation of one channel by another.

模式振幅调制的一个渠道是由另一。

The method of multiple scales is used to determine the equations of modulation of amplitude and phase .

对该系统的研究分为两个部分：首先在第二章集中讨论了相应的确定性系统，即v=0时的情况。

This paper analyses the frequency characteristics of the gear meshing and the signals due to amplitude and frequency modulation.

本文分析了齿轮传动的频率特性和它所产生的频率和幅值调制信号。

Amplitude modulation dot is one of the most widely used by a dot.

调幅网点是目前使用的最为广泛的一种网点。

The present invention relates to a Quadrature Amplitude Modulation method used in the mobile communication system.

本发明涉及一种用于数字移动通信系统的正交振幅调制方法。

The 2×2 Jones matrix methods is used to analyze amplitude modulation characteristics.

采用2×2的琼斯矩阵计算仿真，从理论上分析了它的振幅调制特性。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。