查询词典 DC

With the High Voltage Direct Current Transmission rising in China, more and more DC Transmission systems will be built.

随着直流输电技术在中国的发展，越来越多的直流输电系统将要建设。

This thesis is main to make use of the representative chip TI company′s TMS320LF2407A DSP which is used for the control of motor to complete the control of the speed,direction parameter and other parameters of DC motor.

本论文主要利用用于电动机控制的代表性芯片TI公司的TMS320LF2407A完成对直流电动机的速度、方向等参数的控制。

As a result, heavy metals are transported directional under the DC electric field. The feasibility of electrokinetic technique in remediation of heavy metal contaminated soil has been demonstrated in this thesis.

论文考察了动电修复技术去除土壤中重金属污染物的可行性并针对该技术中存在的问题提出了阳离子选择透过膜强化的动电修复技术。

AC-DC-AC dirve technique. due to the obvious advantages of its application in locomotives andmotor coach,has been widely used in the railways all over the world since 1970s. This has become a tendency.

交－直－交传动技术应用于机车动车具有明显的优点，70年代以来被世界各国铁路广泛采用，已形成一种趋势。

The topic in view of the existing technique level, the main factors, which influence the measurement precision of the large scale test system, are analyzed in this paper, and the solutions improving the precision are put forward.1 using the multi-channel independent AC to transfer DC module, the power supply of the digit part and the simulation part is discerption, reducing the crosstalk between the digital signal and the simulated signal;2The feedback self-checking module is constructed by singlechip compositive 16 high accuracy A/D , established a closed-loop control system through this module and improved system's overall precision effectively.

本课题针对现有的技术水平，分析了影响大型检测系统测量精度的主要因素，提出了提高精度的具体方案和办法：1采用了多路独立交流转直流模块，数字部分与模拟部分分开供电，减小了数字信号与模拟信号之间的串扰。2利用单片机集成的16位高精度A/D构建了反馈自检模块，通过该模块建立了一个闭环控制系统，有效地改善了系统的整体精度。

The matching device automatic test-board is the checking tool checked the matching device capability, precision and reliability are the technique of the the matching device, the precision is the precondition of checking the matching device, the reliability is credibility degree of the decision checking consequent.the topic in view of the existing technique level, the main factors, which influence the measurement precision of the large scale test system, are analyzed in this paper, and the solutions improving the precision are put forward.1 using the multi-channel independent ac to transfer dc module, the power supply of the digit part and the simulation part is discerption, reducing the crosstalk between the digital signal and the simulated signal;2the feedback self-checking module is constructed by singlechip compositive 16 high accuracy a/d , established a closed-loop control system through this module and improved system's overall precision effectively.

匹配装置自动测试台是检测匹配装置性能的检测工具，其重要的技术指标是精度与可靠性，其高精度是作为检测匹配装置的前提，可靠性是决定了检测结果的可靠度。本课题针对现有的技术水平，分析了影响大型检测系统测量精度的主要因素，提出了提高精度的具体方案和办法：1采用了多路独立交流转直流模块，数字部分与模拟部分分开供电，减小了数字信号与模拟信号之间的串扰。2利用单片机集成的16位高精度a/d构建了反馈自检模块，通过该模块建立了一个闭环控制系统，有效地改善了系统的整体精度。

Intelligent battery discharger is the instrument that can maintain and capacity test to battery, DC power and UPS backup battery .

智能蓄电池放电仪是专门对蓄电池组、直流电源、UPS后备电池进行维护及容量检测的仪器。

Data processing software kit can real-time gain the running status and parameter of discharger and form, display, print, all kinds of chart that is of powerful on-line monitor and analysis process function. Battery and DC capability can be seen clearly.

配套的数据处理软件具有强大的在线监控及分析处理功能，可实时获取放电仪的工作状态及参数，生成各种图表并可显示、打印，蓄电池、直流电源性能一目了然。

The meaasurement system has the advantages of simple structure and good measuring repeatability, and can carry out reltime distortionless measurement, whose dynamic strain range is 0～5000με and the strain resolution reaches 3nε/Hz.

使用该传感器可对动态应变信号实时无失真测量，测量灵敏度达到3nε/Hz，测量动态范围为DC～5000με。

DCs activated with DNP modified melanoma cells can elicit activation of haptenized melanoma – specific T lymphocyte.

DNP 修饰 M3所激活的 DC 可以诱导更强的恶黑特异性T细胞效应。

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。