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The experimental results show: the flattop phenomenon on the diode voltage pulse was very apparent for using the carbon fiber cathode, that is to say, the pulse duration of the diode voltage was widened; moreover, under the condition of the same power of microwave, the pulse duration of the out-put microwave was prolonged by about 30%; the peak power of the microwave was enhanced by 3dB.

通过在装置上做的两种阴极的对比实验，结果显示：碳纤维阴极的使用，改善了电子束质量，使辐射微波的脉宽增加了30%以上，辐射主瓣方向上的功率密度提高了3dB以上，频谱分布较纯净，实现了微波的高效输出。

In the voltage doubling rectifying circuit, the high voltage has been realized by the positive and negative way, and the voltage between the cathode and anode could reach 1700 V. In the fly-back switching high-voltage power supply, considering the requirements of each unit of the driving circuits on the power supply, the three-group voltage outputs including low-voltage outputs have been realized: 1600V/20mA,12V/500mA, 5V/50mA, in which UC3842 has been used to achieve pulse width modulation.

在倍压整流电路设计中，采用正、负电压方式实现高压，有效降低了阴阳极间所需的高压，最终两极间可产生1700V电压；在反激式开关电源电路设计中，利用UC3842芯片实现PWM调制，考虑到驱动电路各单元对电源的需求，设计了包括低压电源在内的三组电源输出：1600V/20mA，12V/500mA，5V/50mA。

Based on the principle of system power cycle and characteristics of Freon power generation system, the model for low temperature waste heat generating was constructed.

根据系统动力循环原理以及氟里昂循环发电系统的特点，组建了小型低温余热发电系统模型，并对蒸发器、冷凝器、汽轮机模型等组件进行了设计。

A potential game theoretic solution for distributed uplink dynamic subcarrier and power allocation in multi-cell OFDMA systems is presented, with each mobile station updating its own power level based on local information according to the best response dynamic.

针对多小区OFDMA系统中的上行动态子载波和功率分配问题，提出了一种基于潜博弈模型的分布式功率控制算法，各移动台根据本地信息按照最佳反应动态原则依次更新自己的功率，理论分析和仿真结果均表明系统具有惟一的稳定状态。

The technical problems, about shortage of separation distance, the feasibility of high-rise polymerization factory building, the fire separation and explosion-proof design of polymerization factory building, the selecting and arrangement of water spraying extinguishing system nozzle, the establishment of deluge system valve, and the essentiality of water spraying extinguishing system which is to be established to protect the VCM gasholder, the positioning of water curtain settled under the space which connect the PVC pack house and pack department and how long the system continue operate? The selecting and the quantity of fire extinguishing agent about gas extinguishing system, which will be used in the new 35KV switch station and some rooms including cabinet room, primary control room, UPS room, voltage changer room, belong to new polymerization power panel and UPS station. Designing the model of power supply and distribution for fire-fighting and designing the hardware organization, software, model of data transmission and fire gang control logic programmer about automatic fire alarm system. Making certain the grade of release source point in the fire or explosive atmosphere and delimiting different grade explosion-proof space. Selecting correct explosion-proof construction of electrical apparatus and delimiting the class of building lightning protection, putting forth the concert steps to deal with thunder stroke and electrostatic discharge and so on, have been deeply researched in the process of designing and then the concert steps to deal with them have been putted forth.

针对设计中遇到的防火间距不足、聚合厂房可否采用高层厂房、聚合厂房的防火分隔和防爆设计、水喷雾灭火系统的喷头选型和布置、雨淋阀组设置、VCM气柜是否需要设置水喷雾灭火系统、PVC仓库与包装车间相通处水幕带的布置和系统工作时间的确定、新建35kV开关站和聚合配电及DCS机柜间内的机柜间、主控室、UPS间、变压器室等处设置的气体灭火系统选型和灭火剂用量确定、消防供配电方式、火灾自动报警系统的硬件结构、软件设计、数据传输方式及联动控制设计中的逻辑编程、爆炸和火灾危险环境危险释放源等级确定和防爆区域等级范围的划分、爆炸危险区域电气设备的防爆结构选型、建、构筑物的防雷类别划分及采取的防雷、防静电措施等具体工程技术问题在深入分析研究后，提出了相应的解决措施。

On the basis of the power spectra of earthquake records, the parameters of the power spectral density function of the twice filtered Gaussian white noise process are determined by adopting the least squares procedure of a nonlinear function.

根据地震记录的功率谱，采用非线性函数的最小二乘法，确定了两次过滤Gauss白噪声过程的功率谱密度函数的参数。

Bowl mill in power plant,due to long term operation in bad environment that may easily cause work face wornout on gearwheel,decreasing output and affecting equipment safe and stable operation the thermal power plant of Dongfeng Automobile Corp has raised a plan of "bowl mill gearwheel turn over usage"and gat a very good result.

摘 要］电厂磨煤机长期在恶劣的条件下运行，易导致齿轮工作面磨损，降低出力，影响设备的稳定安全运行。东汽热电厂为此提出了"球磨机大齿轮翻面使用"的实施方案，且取得了良好的效果。

The technical proposal includes a frame (9), a suspension frame (1) on the frame (9), a depth wheel (7) and a power system. The invention is characterized in that the power system is connected with one or more than one crank and rocker mechanisms provided with one or more than one cutters(6). The cutter (6) is parallel to the advancing direction of the multifunctional punctuate, strip typed grass root cutter.

技术方案包括机架(9)，位于机架(9)上的悬挂架(1)，限深轮(7)和动力系统，其特征在于，与该动力系统相连接有一个或一个以上的曲柄摇杆机构，在该曲柄摇杆机构上安装了一把或一把以上的切刀(6)，所述切刀(6)与本多功能点、条式牧草切根机的前进方向平行。

The Influences of EHV grid on the short circuit current and reactive compensation in Fujian power grid and the opening of electromagenetically coupled power loop of 1 000 kV and 500 kV are discussed.

分析了特高压电网对福建电网短路电流和无功补偿的影响以及1 000 kV/500 kV电磁环网的解环等问题。

Aiming at the demand of power system and the practical application, we design a new power system harmonic analyzer. This paper develops the man-machine interface of the analyzer, which is based on the Texas Instrument Company's MSP430 microprocessor.

本文负责装置人机接口部分的研制，开发了以TI公司MSP430单片机为核心的人机界面系统，显示功能强，编程简单，具有广泛的应用价值。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。