查询词典 continuous wave

The general analytic expression of the space vector modulation wave was induced and the continuous and discontinuous modulation mode were unified by the analytic expression.

文中归纳出空间矢量调制调制波的通用解析表达式，并由此将连续调制和不连续调制统一起来。

Based on integral transformation, analytical solution for the wave transmission equations in 1-D inhomogeneous media is derived. By dividing the media into layers and considering the continuous conditions between the interfaces, the transfer matrix of amplitude of waves is obtained.

利用积分变换，用解析方法求解了一维非均匀区域的不同性质对弹性波传播时波幅变化的影响；将非均匀区域离散成均匀的薄层，结合相邻层的连续条件，建立了数值解法的波幅传递矩阵。

From the lumped equivalent circuit model, the phase shift/attenuation and impedance characteristics of the novel structure are first analysed based on the Bloch theory, which shows the novel structure has properties analogous to those of a bandpass filter: the attenuation constant keeps zero with a continuous and smooth characteristic impedance distribution within the passband and the bandwidth may be arbitrarily specified; characteristic impedance is purely imaginary with the inhibition of the electromagetic wave propagation outside the passband.

首先从一般的等效电路模型出发，根据Bloch周期性理论对该结构的相移、衰减和阻抗特性进行了分析，结果表明该新结构具有类似带通滤波器的特性：通带内衰减常数为零，特性阻抗为实数并随频率连续平滑分布，具有可任意指定的阻抗匹配带宽；带外特性阻抗为纯虚数，电磁波传播受到抑制。

Her vision is to wave the Department of Education to establish the region as a flagship wave and continuous efforts for this ideal, and strive forward.

她的理想是把浪头教学部建立成为浪头地区的旗舰，并且为这一理想不断努力着，奋斗着。

The origin of travelling wave and its propagation characteristics of modal components in time-domain and frequency domain are analyzed. The characteristics of configuration of railway Automatic Blocking/Power Continuous Lines and principle of various methods of travelling wave fault location are studied. Using transient surges extracted by transform voltage on the lines, a new method of double-ended principle of fault location is proposed.

本文分析了故障暂态行波的产生机理和模分量在时域、频域的传播特性，研究了铁路自闭/贯通线路的结构特点以及目前各种故障测距原理，提出了利用线路侧电压互感器提取暂态行波双端故障测距的新方法，该方法能够精确地测量各种类型的故障距离。

Based on continuous conditions of general displacements and stresses at interfaces of adjacent layers and given boundary conditions, the reflection and transmission coefficients of elastic wave were obtained by virtue of partial wave method and propagator matrix method.

以多层纯弹性结构为研究对象，验证本文提出方法的正确性，然后对弹性波在多层电磁弹性结构中的反射与透射特性进行了计算和分析，并讨论入射角、入射波频率和电磁边界条件对这些系数的影响。

We apply nondegenerate four-wave mixing processes to the generation of stable continuous variable entangled light and study the time evolution of continuous variable entangled light.

利用非简并四波混频体系制备出稳定的连续变量的纠缠态，研究了纠缠随时间的演化情况。

Lastly, this paper discusses the possibility to monitor the coming of the larger earthquake using shear-wave splitting observation, suggests that the continuous observation on temporal change of shear-wave splitting could be adopted to monitor the occurrence of larger earthquakes, this observation could recognize whether the crust rock has enter the fracture critical state or not, forecast the possible coming earthquake, i.e.

最后，本文对利用剪切波分裂观测对较大地震进行监控作了讨论，认为对剪切波分裂的时间变化作持续的观测，可以进行地震监测，识别地壳岩石是否已经进入了破裂临界状态，对可能到来的地震作出相应的预测。

Output Pulse Wave:unsymmetrical dual directional pulse wave including continuous,and uneven random waves.

输出脉冲波形：非对称双向尖脉冲波，分无周期规律的随机脉冲和有规律的连续脉冲。

0Utput Pulse Wave:unsym met ricaldual directional pulse wave including continuous,discontinuous and uneven waves.

输出脉冲波形：非对称双向脉冲波，分连续波、断续波以及疏密波。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。