查询词典 pulses

In nucleus survey, The scaler is a basic equipment which is used to record pulses, correlated with wanted physical quantity.

在核测量中，定标器是基本的测量仪器，用来确定与要测量物理量相关的脉冲计数。

And the light pulses which are propagating with PMD are also simulated by solving the coupled nonlinear Schr?

理论分析了二阶偏振模色散对于脉冲的影响以及PMD 对RZ 码和NRZ 码的不同展宽。

Comparison of two kinds of pulse width of ultrashort hyperbol ic secant pulses［J］.

超短双曲正割脉冲的两种脉冲宽度比较［J］。

Based on two order approximation of the variation of refraction index produced by self-action while optical pulses are traveling in Kerr-medium,the propagation equation has been solved.Furthermore,the strict analytical expressions of the amplitu

文摘：将光脉冲在克尔介质中自作用产生的折射率变化作二阶近似，求解所得到的传播方程，得到啁啾高斯脉冲幅度，脉冲宽度和周啾参数随传播距离变化的严格解析解，讨论了基模高斯脉冲孤波传播的条件。

In the Chapter 2 of this dissertation, new pulse sequences were introduced, in which CPMG and bipolar gradient pulses have been implemented into pulsed-filed-gradients spin-echo NMR spectroscopy, and is used to measure the self-diffusion coefficient of metabolites in bio-fluids.

实验结果表明，这种新方法不仅可以在生物体温或更高温度下准确测量分子的自扩散系数，不受对流和背景梯度的干扰，同时还具有复杂核磁共振谱的编辑功能，能够在不做任何物理分离的条件下，分别研究生物大分子和小分子的扩散系数，以及分子之间的相互作用。

The satellites transmit pulses and the airships receive the echo. BSAR radar has separated transmitting and receiving sets. Comparing to the usual bistatic synthetic aperture radar, it is able to gain rich information, has long distance effectiveness.

BSAR雷达由于发射、接收分置，相对于普通的单基雷达，具有获取信息丰富、作用距离远、安全性高、抗干扰能力强和抗截获性能好等突出优点。

For example, a stepper motor requires a series of digital pulses as an input to control the motor position and speed.

举例来说，步进电机需要输入一系列数字脉冲信号来控制电机的位置和速度。

With the shadowgraph method, three ultrasonic pulses in water, which corresponds to the conversion modesof the fast compressional wave the transverse wave and the slow compressional wave in the sample of fluid-saturatedporous medium respectively, were observed and recorded by CCD camera.

用阴影法和CCD照相，观测到声脉冲透过流体饱和孔隙介质（按英文"Fluidsaturatedporousmedum"的第一个字母缩写为FSPM）样品后在水中传播的三个声脉冲，这三个声脉冲分别对应于FSPM样品中的三种体波的转换模式。

Through studying distribution regularity of switching angle in SHET and the problem found when improving quality and efficiency of output waveform, optimal strategies that double switching angles and minimum pulses are ignored are proposed, the goal that hardware circuit is convenient to be made and more harmonics are eliminated by using less loss switching transistor is reached.

通过对特定消谐技术中开关角的分布规律及在提高输出波形质量和效率时所遇问题的研究，提出了省略开关角对及省略窄脉冲的优化策略，达到了便于硬件实现、功率开关管的损耗较小、而消除的谐波次数较多的目的。

Firstly, function generator is used to generate all kinds of different frequencies pulses which exactly simulate the given speed of critical axis when it works. Then PC gives the position command, the NiosII deals with the trace which we expected and then gives an order which is needed by the linear motor during one shog.

首先利用函数发生器产生不同频率的脉冲来精确模拟主轴运动时的给定速度，然后在PC机上下达坐标指令，由NiosII软核处理器对所定义的轨道运算处理后，计算出直线电机在一个横移内所需要的位移命令。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。