直流的

This fault location system is the first one that can be used to HVDC transmission lines with a carrier relay station.

本系统是国内外研制出的第一套切实可行的可用于带有载波中继的直流输电线路行波故障测距系统。

This complements the reservoir capacitor with a choke and a second 滤波电容, so that a steadier DC output can be obtained across the terminals of the filter capacitor.

这补充一扼流和一个第二个的滤波电容的储层电容器，以便可以跨接线端与滤波电容器得到稳定的直流输出。

This paper introduces the principle of electromotor based on single chip computer 8051PWM,and the realization process of reversible control and non- reversible control .

介绍了基于单片机8051PWM控制的电动机原理，阐述了8051与直流电动机构成的电机可逆控制和不可逆控制的实现过程。

With many years' development, we have established advanced production and detection lines for direct-current traction electric motors, magnetic segregator and mining electric locomotives.

经过三十多年的发展，我厂现已拥有一条较先进的直流牵引电机，磁力分离器，工矿电机车的生产、检测流水线。

In this system,self-aligning torque is calculated by computer and sent to microcomputer,direct current motor's output is controlled by microcomputer through PWM technology,and we simulate self-aligning torque.

该系统中上位机实时计算出汽车受到的回正力矩，通过串口发送至单片机，单片机通过PWM控制直流电机的输出力矩以达到模拟的目的。

The self-balancing characteristic of the prime mover is introduced.

描述了原动机的自平衡特性，介绍了以直流伺服驱动器为核心的原动机模拟系统的结构及工作原理。

The mathematical relationship between locational marginal price and shadow price of congestion based on DC flow is shown in this paper.

首先介绍了节点边际价格的经济含义，然后在简化直流电力系统的前提下，根据其经济含义推导了节点边际电价与阻塞费用影子价格的线性化关系。

Simulation results show that the dynamic performance of simple adaptive controller is better than conventional proportional integral controller and simple adaptive controller possesses better robustness while load varies.

仿真结果表明，与常规的比例–积分控制相比，对并联型有源滤波器直流电压采用简单自适应控制可获得更好的动态性能，且负载变化时的鲁棒性更好。

Tongguanshan pumped-storage hydroelectric station is located in the southmost part of Jiangsu Grid, which is the receiving system and whose regional voltage is comparatively low. And furthermore, the pumped-storage hydroelectric station is near Zhengping DC substation, so its performance of dynamic reactive power becomes one of the most important contents needed research.

由于铜官山抽水蓄能电站位于江苏电网的最南部，处于系统的受端，地区电压相对较低，另外，铜官山抽水蓄能电站距离政平直流较近，其动态无功支撑性能是研究的重要内容之一。

For this reason conventional antireflection coating designs developed for thermal evaporation are not ideally suited for DC reactive sputter deposition.

基于这个原因，传统的热蒸发法的增透膜的设计，不适合直流反应溅射沉积。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。