脉冲

A control system of step motor that enable operator to control displacement and adjust velocity discretionarily was designed,using the TMS320LF2407 chip and the step motor drive.

它输出的位移与输入的电脉冲个数成正比，转速与脉冲频率成正比，适用于在数控开环系统中做执行元件，用途十分广泛[1]。

Number display, and control cycle interval, pulse interval and pulse width, so as to control dust

DMK-4CSA5 本控制仪核心控制由单片机实行，实现按键参数设定、数码显示及循环间隔、脉冲间隔和脉冲

An echo model of ultra-high speed moving target was established,and its effect on pulse Doppler processing was analyzed.

建立了超高速运动目标的回波模型，分析了其对目标检测中脉冲多普勒处理的影响，并提出了基于匹配傅立叶变换的脉冲多普勒处理方法。

In this paper, NO is generated by negative pulsed discharge between needled and plate electrodes in dry air at the atmospheric pressure, Some of the important parameters affecting concentration of NO and NO2 have been investigated. These include the pulsed discharge frequency, the distance between electrodes and electrode polarity.

脉冲电弧放电是产生医用吸入性NO 的一种新方法，因此，本研究采用负脉冲电弧放电，以大气压下的干燥空气为原料，研究了放电频率、电极间距和电极极性等参数对NO 和NO2浓度的影响。

Firstly, the pulse source of middle- and far-range is deeply studied. The influential factors on the stability index of a pulse source are minutely analyzed, and full-solid and high-stability pulse source units, based on avalanche dynatron, are designed.

通过电路合成和空间合成两种方式进行脉冲源单元的功率和重复频率的相干合成，研制出高功率、高重频脉冲源，为实现超宽带冲激雷达的中远程目标探测提供了前提条件。

The design started from the expression of the current producing the pulsed magnetic field, and was based on the following principles: low eddy current loss, small capacitive energy storage and large quality factor. The optimization method of the storage capacitor and charging voltage of the field producing system was presented.

从产生脉冲磁场的电流表达式出发，根据涡流损耗不能太大、品质因数要高和电容储能要小的原则，给出了脉冲磁场产生系统的储能电容和充电电压的优化设计方法。

The recently progress both inland and overseas in studying of the transient eddy current response and the ...

评述了脉冲涡流瞬态响应的计算、提离噪声抑制等方面的国内外研究进展，分析了脉冲涡流检测技术的发展方向。

we use magnetron sputtering to deposit Al-AlN particle film as SED's electron-emitter. The Cr-Cu-Cr electrode was prepared by electron beam vaporize deposition. The voltage used to electroform the cracks are periodic trigonal wave and the breadth of the voltage are increasing gradually.

文章中采用铝-氮化铝薄膜材料作为SED器件的电子发射层，采用磁控溅射的方法镀电子发射层，采用电子束蒸发的方法镀铬-铜-铬材料作为电极；电形成过程中采用电压幅值恒定、周期性重复的脉冲和电压幅值渐增的电压脉冲作为电极电压。

The electromagnetic force magnitude and distribution with different deformation in electromagnetic bulging with die are analyzed and the moment of maximal electromagnetic force is researched.

在成形过程中，载荷是以脉冲的方式作用于坯料的，故又称之为磁脉冲成形或冲击加工[3]。

In electronic technology, the pulse signal is a voltage according to a certain extent, for a certain time interval of the pulse signal issued.

在电子技术中，脉冲信号是一个按一定电压幅度，一定时间间隔连续发出的脉冲信号。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。