直流的

Through on-the-spot investigative research, I emphatic depend on the DC power system model of Beijing Line 1 Subway to simulate and calculate upon the various types and different sites faults.

通过实地调查研究，重点依据北京地铁1号线直流供电系统模拟图对各种类型、不同位置故障进行模拟仿真计算，并对危害程度进行分析，提出具体的运行方案和建议。

As such, it can be used for many measurements performed by a conventional DC multimeter.

静电计是一种高度精密的直流多用测量仪表。

DC torque motor under the reaction flywheel control mode was used in nacelle azimuth control in this paper.

实现了用直流力矩电机在反作用飞轮控制方式下对气球吊篮的方位控制。

Influence of soil structure on direct current flowing into neutral point of power transformerg.

土壤结构对流入变压器中性点直流电流的影响。

This paper presents a short-circuit the DC is not afraid of adjustable power supply, the output voltage from 4.5 v-14.3v continuously adjustable, the largest output current up to 600 mA, and with output short-circuit protection and automatic alarm function.

本文介绍了一种不怕短路的直流可调稳压电源，其输出电压从4.5 v —14.3v 连续可调，最大输出电流可达600 mA ，并且带输出短路自动保护及报警功能。

In their study, the researchers connected the battery pack and ultracapacitor bank in parallel to the DC link with bi-directional two quadrant buck-boost converters.

在他们的研究中，研究人员连接电池和超级电容器银行在平行直流环节双向两个象限降压升压转换器。

The phase switches of the proposed SRM converter turn on in zero voltage switchingmode by making use of a kind of parallel quasi resonant DC link circuit,and turn off in ZVS mode by adding a shunt-wound capacitance to every phase switch.

电路采用并联型准谐振直流环节为SRM相开关开通提供零电压条件，给相开关并联电容器则保证了相开关的零电压关断。

Stability and control strategy for parallel operation of AC and DC transmission systems.

交直流混合系统电压稳定性分析的研究。

Model Identification in AC/DC Parallel Transmission System Based on WAMS.

基于WAMS 的交直流并联输电系统模型辨识算法。

The integrated monitoring system to monitor the object, including batteries, rectifiers, AC-DC power distribution panel, such as communication equipment, various types of air-conditioning equipment, patch panel, cable, as well as outside temperature, humidity, smoke, water intrusion, infrared detection, such as nausea touch environmental parameters.

该综合监控系统的监测对象包括蓄电池、整流器、交直流配电屏等通信电源设备、各类空调设备、配线架、外线电缆以及温度、湿度、烟雾、水侵、红外探测、闷碰等环境参数。

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。