查询词典 power-driven

This thesis contributed to the comprehensive study of the Finite-Difference Time-Domain method and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies. The work includes mainly three parts: the study on the performance of PML absorbing boundary condition applied to pseudo low frequency electromagnetic problems; the validation of the FDTD method with PML absorbing boundary conditions and the corresponding computer software based on the numerical study of the electromagnetic field of an electric dipole antenna, and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies; the development of an improved alternating direction implicit finite-difference time-domain method.

在综合前人工作基础上，本文对时域有限差分法及其在开关电源辐射电磁场数值计算中的应用进行了系统的分析和研究，其核心内容包括：伪低频电磁场数值计算中PML吸收边界条件性能的研究；基于基准问题—电偶极子天线三维辐射电磁场，验证了本文构造的基于PML吸收边界条件的三维FDTD法及其计算软件，并应用于高频开关电源辐射电磁场的数值分析；提出了一种改进的交替方向隐格式时域有限差分法。

An amplitude of an alternating component of the voltage of the electric power signal generated is no greater than one-tenth that of an amplitude of a constant component of the voltage of the electric power signal.

发生的电功率信号的电压的交变分量的幅值不大于电功率信号的电压的常量分量的幅值的1/10。

This is adjusted being able to care for loads power condition only but is disregards the alternating voltage extent size, could be considered a way to adjust the duty cycle to achieve the purpose of adjustment of power.

这种调整可以只关心负载功率情况而不管交流电压的幅度大小，可以考虑采用调整占空比的方式达到调整功率的目的。

Because of short of power sources in the altiplano, very long feed line of power distribution system have to be used when one of the substations is failed to operate, in order to g.

由于正在建设中的青藏铁路地处高原、电源稀缺，在某些变电所退出运行的情况下，不得已采用超长距离供电以保障对沿线负荷的电力供给，因此，超长距离供电线路的单相接地故障选线问题值得研究。

The mechanism part's design I determined it as that Pulse motor gives the power and the Transmission system transfer the power to the Ambulacrum.

机械结构部分的设计确定为步进电动机带动的同步带传动系统。

So it is worth to design an audio power amplifier with the features of high power and high efficiency.

因此，设计一种失真度小，输出功率大，效率高的音频功放也有很重要的现实意义。

After studying power amplifier, in this paper, I introduce the kinds of power amplifier.

在查阅大量中外文献的基础上，本文对功率放大器进行了系统的阐述。

This power is best used as a method of harassment, while distracting an opponent at one area, casting the power near a weak point in their base can cause great havoc in the short time that they are given to run amuck.

这种权力是最好用作一种骚扰，而分散的对手在一个地区，铸造的力量附近一个薄弱点在其基础可能会造成巨大破坏的时间很短，他们考虑到横行。

Deepen as what power system reforms, the position of market main body of power plant gradually Anacreontic, the principle of market economy, regulation is changing the content of tradition management item and range, become its organic component.

随着电力体制改革的深化，发电厂的市场主体地位逐渐明朗，市场经济的原则、规则正在改变传统管理事项的内容和范围，并成为其有机的组成部分。

In order to meet the higher requirements for some scientific experiment due to site conditions limitation for data acquisition system's volume,power consumption and reliability,a real-time data acquisition system based on TMS320F2812 chip was designed,which could carry out real-time acquiring and recording for analog signals output from power system.

为了满足有些科学实验由于现场条件的限制对数据采集系统的体积、功耗以及可靠性等方面所提出的较高要求，设计了一种基于 TMS320F2812芯片的实时数据采集系统，该系统可对电力系统所输出的模拟电压信号进行实时的采集和记录。

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。