查询词典 Ac

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。

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。

Starting from the steady-state performance of three-phase fully-controlled rectified circuit, which is with large inductive load, we take the front two items of the Maclaurin series of the DC voltage average as approximate formula, with considering of the effect of the AC-side inductance first, and further effect of AC resistance on DC voltage and commutation angle.

本文从带有高感性直流负载的三相全控整流电路稳态工作的物理情况出发，首先考虑了交流侧电感的影响，进而考虑交流侧电阻对直流电压、换相角的影响，将直流电压的平均值用麦克劳林级数表示，取前两项作近似，得出了实用的解析计算公式，并给出了计算步骤，实验证明该结果具有较高的精度。

The playback or recording heads of a magnetic tape recorder or player have been demagnetized heretofore with an electrical unit which plugged into a suitable 110-volt AC current source and had pole pieces which were passed closely adjacent and across the surface of these heads and then slowly withdrawn to allow the influence of the AC field to die away gradually.

淘宝上的买家都是专家，都是测试了使用效果之后才给好评的啊？俺在淘宝淘了这么多东西，只要按时收到了东西，没坏，没烂，跟照片一样，就给好评了哦！照你这么说，你在淘宝买个录音机的是不是都得实际测试了所有指标跟出厂指标一致之后才给好评啊？

Namely:On an AB of straight line with order the partition of C, make2= CB × AB, or make the AC ∶ AB= CB ∶ AC.

即：在直线段AB上以点C分割，使2＝CB×AB，或使AC∶AB＝CB∶AC。

You have to walk your own alk in this life.

次生中你必须走自己的路。

To start with, the thesis analyses ***ism in terms of the generic masculine words, word order and semantic derogation of women in greater detail.

论文首先从阳性词泛指，词序，词义的贬降等方面对英语中的性别歧视现象进行了详细的分析。