脉冲

Supposing the spectral distribution of the chirped pulse after amplification is be Gauss or super-Gauss distribution,the inverse calculation on 100 J Nd∶glass chirped pulse amplication system is carried out.

理论上假定放大后啁啾脉冲的光谱分布为高斯分布或超高斯分布，对&百焦耳级钕玻璃啁啾脉冲放大系统&进行逆运算。

And the phenomena of multiple pulses and " pulse repetition rate evolution" were observed and discussed.

分析介绍了实验中出现的多脉冲现象和激光脉冲重复频率的演化及其原因。

Objective In order to compare the effect of treating xanthelasma by ultropuls CO2 laser or cosmetic surgery.

目的：比较超脉冲CO2激光与美容外科手术治疗睑黄瘤的美容效果。方法：2003年1月至2004年3月采用美容外科手术和超脉冲CO2激光治疗106例（161个）睑黄瘤，其中手术治疗65例（98个），激光治疗41例（43个）。

This paper expouds the characteristics of quasi-continuous wave radar,and compares the pulse Doppler radar with CW radar and quasi-CW radar.

阐述了准连续波雷达的特点，并对脉冲多普勒雷达、连续波雷达和准连续波雷达进行了比较，结果表明准连续波雷达优于脉冲多普勒雷达和连续波雷达。

The relationships between welding pool width, wire extension and welding parameters including welding current duty ratio, base current, peak current, welding speed and wire-feeding speed were studied. Through large numbers of welding experiments, aluminum alloy pulsed MIG welding dynamic process were identified by the curve fitting method, and the mathematical models between welding current duty ratio, base current, welding speed, wire-feeding speed and wire extension were obtained, succeeding the model between the above parameters and weld pool width.

介绍了铝合金MIG焊焊接电流占空比、基值电流、峰值电流、焊接速度、送丝速度对熔宽的影响规律，并在其基础上，通过平板堆焊试验研究了这些参数对焊接干伸长的影响规律；在铝合金机器人脉冲MIG焊平板堆焊过程各焊接参数与正面熔宽之间的传递函数的基础上，采用铝合金平板堆焊阶跃试验，利用曲线拟合法辨识了铝合金机器人脉冲MIG焊动态过程传递函数，建立了焊接电流占空比、基值电流、焊接速度、送丝速度与焊接干伸长之间的对象数学模型。

Analysis of theory and experiment have shown that the frequency of high voltage pulse affect attenuation ratio ofcapacitive divider.

研制了一种测量脉冲高电压的电容分压器，从理论和实验两个方面分析了高电压脉冲的频率对电容分压器分压比的影响。

The magnetic capability of the large dimension toroid for application was measured by the pulse magnetization method. When the outer and inner dimensions of the toroid core were 220 and 80mm, the bight was 60 mm, and the section was 4 200mm^2, the pulse width was 3.5~4.0μs, the repelition rate was 50Hz, the primary and second coils were 1 circle, the maximum volt-second product was 0.007Vs and the bias current was 8A to maintain the toroid not saturated.

使用脉冲法对成型的大尺寸磁环动态磁性能进行测量，励磁方式和工作中完全一致，在测量脉冲脉宽3.5~4.0μs，重复频率50Hz，初次线圈均为1匝，外径220mm，内径80mm，高60mm，截面积4 200mm^2时，得到磁环实际能够达到的伏秒数为0.007Vs，此时所需的偏磁电流大小为8A。

Pulse-type steam trap: Pulse-type traps are two plates down according to changes in vapor pressure regulating valve switch, even if the valve is completely closed the entry and exit points are also through SAFETY VALVES the first and the second hole interlinked, remains not fully closed, steam constantly overflow, large amount of steam leakage.

脉冲式疏水阀：脉冲式疏水阀有两个孔板根据蒸汽压降变化调节阀门开关，即使阀门完全关闭入口和出口也是通过第一、第二个小孔相通，始终处于不完全关闭状态，蒸汽不断溢出，漏汽量大。

Pulse-type traps Pulse and two orifice traps are down according to changes in vapor pressure regulating valve switch, even if the valve is completely closed the entrance and exit is through the first and the second hole connected, always not fully closed, the steam constantly Yat out Water Power Control Valves steam leakage large.

脉冲式疏水阀脉冲式疏水阀有和两个孔板根据蒸汽压降变化调节阀门开关，即使阀门完全关闭入口和出口也是通过第一、第二个小孔相通，始终处于不完全关闭状态，蒸汽不断逸出，漏汽量大。

The DC-Pulse power supply can be separated into two parts. One is the DC power supply and the other is the pulse switch unit.

此直流脉冲电源供应器可分为二部分，一为直流电源供应器部分，另一为脉冲切换单元部分。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。