模拟信号由直流和交流分量、频率和相位四部分组成。
An analog signal is composed of four basic components: DC and AC magnitudes, frequency, and phase.
为了传输太阳能发电站的能量，我们将需要建造新的高伏特直流传输器来取代我们的交流电网。
To transmit the power for the solar farm we would need to build new high-voltage direct current transmission to replace our ac current grid.
公司生产电力逆变器，把太阳能生成的直流电源转换为使用最多最需要的交流电源。
The company manufactures power inverters necessary to convert the DC power generated by solar panels into the ac power required for most USES.
德州的西南电力联营(Southwest Power Pool)正在设计一个直流交流综合系统使在西德克萨斯州的1千亿瓦的风力发电产物能传输出去。
The Southwest power Pool of Texas is designing an integrated system of DC and AC transmission to enable development of 10 GW of wind power in western Texas.
现在有人开始质疑这一标准的适用性，因为在远距离输电的情况下，采用高压直流(HVDC)要比高压交流损耗小。
Some people, however, question that standard because over long distances high-voltage DC lines suffer lower losses than AC.
二极管是将交流电整流成直流电的电子装置。
Diodes are electronic devices which rectify alternating current to direct current.
不足处是反向电渗析产生的是直流电，而世界上主要使用交流电。
The disadvantage is that reverse electrodialysis produces direct current, whereas the world runs mostly on alternating current.
一些先进的光伏电池甚至可以提供更高的效率，但是由于要把直流电源转化为交流电，转换效率有所降低。
Some cutting-edge photovoltaic cells offer an even higher initial efficiency but fall behind when the DC power they produce is converted to grid-ready alternating current.
该系统产生的电流为直流电，所以用来驱动本地的直流点装置比将其转化为交流电输入电网来的更有效率。
The system generates a direct current, so using it to power DC devices locally is more efficient than switching to the alternating current needed to feed it back to the grid.
选择交流电作为工业标准的原因很简单，在早期供电距离很短的电网里，交流电的损耗比直流电小。
The reason was that over the short distances spanned by early power grids, AC transmission suffers lower losses than DC. It thus became the industry standard.
由于在传输过程中采用高压直流电缆输送的损耗要比传统交流电的损耗小得多，因此采用交流电远距离传送电力很不划算。
Energy losses on DC lines are far lower than on the traditional AC ones, which make transmission of energy over long distances uneconomic.
由于错误的读数可能由直流或交流静电场引起，所以静电屏蔽有助于尽量降低这种电场的影响。
The erroneous readings may be due to either DC or AC electrostatic fields, so electrostatic shielding will help minimize the effects of these fields.
将直流变为频率可调的交流电流就称逆变。
The DC into AC current adjustable frequency that the inverter on.
数字集成电路测试内容包括逻辑功能测试、直流参数测试和交流参数测试。
Digital IC test content includes logic functional test, test of DC parameters and test of AC parameters.
斯潘电力电子设计的权力中心，以转换各种工业应用广泛，交流电流的直流和抵御甚至最苛刻的环境。
Spang Power Electronics designs power centers to convert AC current to DC for a wide variety of industrial applications and to withstand even the harshest of environments.
可无论是单或双线圈，交流或直流操作与铝体。
Available either single or double solenoid, AC or DC operated with aluminum bodies.
可在任何直连轴或最终的轴模型，它是专为交流和直流传动控制系统的反馈。
Available in either thru-shaft or end-of shaft models, it is specifically designed to provide feedback for ac and DC drive control systems.
我们总是用直流(交流)电弧焊机焊收受子。
We used to weld pipes with direct current (D. c) so are welder (ac A. C. welder).
同步发电机同步发动机是配有直流励磁机的同步交流发电机。
Synchronous generator a synchronous generator is an AC generator having a DC exciter.
开关电源把直流电源或交流电源通过它可以获得一个稳定的直流电压源。
Switching power supply or DC power to AC power through it will be a stable DC voltage source.
把交流变为直流的器件。
交流变直流的变频器通常称整流器。
交流电与直流电的不同之处在于交流电不断地改变其电流流动方向。
Alternating current is different from direct current in that it constantly changes its direct of flow.
对于交流电压测量﹐利用有效值转换电路或精密整流器电路将交流信号转换成直流电压。
For AC voltage measurement, an RMS converter circuit or a precision rectifier circuit convert the AC signal into a DC voltage.
比起交流输电和本地发电，轻型高压直流输电系统不仅具有成本优势，它也对提高交流电网电能质量提供了新的途径。
Compared to the ac Transmission and local power generation, HVDC light system is not only cost advantages, it also exchanges to enhance ac power quality for a new approach.
比起交流输电和本地发电，轻型高压直流输电系统不仅具有成本优势，它也对提高交流电网电能质量提供了新的途径。
Compared to the ac Transmission and local power generation, HVDC light system is not only cost advantages, it also exchanges to enhance ac power quality for a new approach.
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