查询词典 AC

The design of Brushless synchronous AC generator constitute of the main generator AC excitor revolve selenium rectifier and so on.

无刷同步发电机主要由主发电机、交流励磁机、旋转整流器组成。

With electronic controllers used occasionally on normal flourescent lights and usually on one-piece CFL's, extra circuitry is included which converts the 240V AC into DC, then back into AC but at a frequency of around 20 to 30 kHz (20,000 to 30,000 cycles per second), which usually eliminates any perceivable flicker.

在普通荧光灯中安装电子控制器，一般情况下通常在单管节能灯中安装这种电子控制器，并设计专门的电路用来将240V交流电转换为直流电，然后再转换成工频大约为20--30kHz（每秒钟20000到30000周期变化）的交流电。通常情况下，这种电灯能消除所有可视见的闪烁。

The performance of speed regulation of AC motor can compare with that of DC motor after the FOC is introduced into AC motor field.

采用矢量控制后交流电机的调速性能可以和直流电机媲美。

Due to the high reliability, high stability and low EMI criterions in auxiliary power supply systems, the half-bridge LLC resonant converter is selected for the front-end converter, the AC bus architecture and full-wave rectifier are as well utilized. The turns-ratio between the AC bus and load converter is 1:1. The effect of beads which are used in the load converters to the resonant circuit is analyzed.

根据辅助电源高可靠性、高稳定性、低电磁干扰、良好的高频隔离的要求，通过对不同拓扑类型的分析比较，选择半桥LLC谐振变换器作为前级变换器，交流母线和零式全波整流结构作为后级变换器，在母线和后级变换器的连接上采用1∶1的隔离变压器连接。

It uses Quasi-synchronous sampling method to measure electrical AC parameters and analyze harmonic. It can measure parameters of several AC circuits, display and carry on remote communication.

采用准同步采样算法进行电参量测量及谐波分析，可实现对多个回路进行测量、显示、远传。

According to the disadvantage of great current made by 660V/1140V AC motor which works under the mine when the AC motor starts, it can make power system and motor impactive.

根据在煤矿井下工作的660V/1 140V交流电动机起动电流大，对电网及电机造成冲击的缺点，设计了一种新型的矿用隔爆型软起动器。

This system is designed based on SPCE 061A microcontroller to measure the close loop parameters of the amplifier. The system can measure the input offset voltage、the input offset current、the open loop AC differential mode voltage gain、the AC common mode rejection ratio and unit gain bandwidth,using the measure method of assistant amplifier. What is more, data printing is completed in this system.

摘要本系统是基于SPCE 061A 单片机的运算放大器闭环参数测试系统，该系统采用辅助运放测试方法，可对运放的输入失调电压、输入失调电流、交流差模开环电压增益和交流共模抑制比以及单位增益带宽进行测量，并具有将测试数据打印输出的功能。

Methods:Interbrain microinjection of drugscombined with observation of changes in arterial pressor and heart rate were used.Results:(1)Corticotropin releasing factoror substance Pmicroinjectioninto the SL can induce pressor response.

本实验室的一系列研究结果证明，控制情感和压力的神经升压环路中，AC是最重要的，AC通过CRF -或SP -能神经元与其它的神经核团有广泛的联系［1—4］。

Article 56 The carrier's liability f the loss of damage to the goods shall be limited to an amount equivalent to 666.67 Units of Ac per package other shipping unit, 2 Units of Ac per kilogramme of the gross weight of the goods lost damaged, whichever is the higher, except where the nature value of the goods had been d by the shipper befe shipment ed in the bill of lading, where a higher amount than the amount of limitation of liability set out in this Article had been agreed upon between the carrier the shipper.

第五十六条承运人对货物的灭失或者损坏的赔偿限额，按照货物件数或者其他货运单位数计算，每件或者每个其他货运单位为666.67计算单位，者按照货物毛重计算，每公斤为2计算单位，以二者中赔偿限额较高的为准。但是，托运人在货物装运前已经申报其性质和价值，并在提单中载明的，或者承运人与托运人已经另行约定高于本条规定的赔偿限额的除外。

This paper points out the method of successful demonstration experiment by analyzing the experiment elements of LC oscillator, Lenz's Law, self inductance phenomenon, single phase AC and three phase AC characteristic.

从分析实验原理出发指出使LC振荡、楞次定律、自感现象、单相和三相交流电特性等实验容易演示成功的方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。