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.
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.
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.
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.
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.
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.
由于种种原因，交流电比直流电用得更为广泛。
For reasons the alternating current is more widely used than the direct current.
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.
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.
通常的方法就是使用整流器---一种把交流电转换为直流电的装置。
The usual way to do this would be to use a rectifier—a device that converts alternating to direct current.
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.
将220v交流电整流为直流电，是电力电子技术应用中最基本的整流方案。
Commutating 220v AC to DC is the most basic application of the rectifier programs in power electronics technology.
电瓶充电器，用交流电向飞机内电瓶充电的电气装置。带有交流电的电气装置，该装置产生直流电向飞机上的电瓶充电。
Battery CHARGER, an electrical device supplied with alternating current, which produces a direct current output for charging the battery on the airplane.
在电子技术中，把交流电转换成低电压直流电的一种电路。这种电路的输出是经过调整的，使它的噪声及电压波动都很。
In electronics, a circuit for converting AC voltage to low voltage DC in such a way that the output is regulated to minimize noise and voltage fluctuation.
整流器；整流管一种将交流电流转化为直流电流的装置，如二极管。
A device, such as a diode, that converts alternating current to direct current.
万佛圣城太阳能计划协调人张简嘉乃指出，传统的太阳能系统采用中央逆变器，将直流电转换成交流电。
Amy Chang-chien, coordinator of this solar project, pointed out that traditional solar system has a centralized inverter to change direct current to alternating current.
整流电路的主要作用是将交流电压转换成直流电压。
The main function of rectifier circuits is to convert AC to DC.
所以交流电必须整流为直流电。
The AC output must therefore be rectified, or changed to dc.
AC适配器(这是交流电源更准确的说法)只是把来自墙上插口的交流电转化为低伏特、低安培的直流电源，并通过USB接口充入手机。
The ac adapter (as it's more accurately known) simply converts the ac current from a wall outlet into low-voltage, low-amperage DC current that it provides via a USB port.
要注意，代文宁定理不仅适用于直流电路，也适用于交流电路。
It is to be noted that Thevenin s theorem applies to AC as well as to DC circuits.
为能向220VAC的电器提供电能，需要将太阳能发电系统所发出的直流电能转换成交流电能，因此需要使用DC-AC逆变器。
To be able to provide 220VAC electrical power, solar power generation system needs to be issued by the exchange of DC can be converted into electrical energy, so need to use the DC-AC inverter.
木文研究了间接直流电位法（IDC法）和交流电位法（AC法）用于监测疲劳短裂纹扩展速率的有关技术问题。
The technique of measurement of growth, rate of fatigue short crack with indirect KC (IDC) potential system and AC potential system was investigated.
由于种种原因交流电比直流电用得广泛。
把交流电转化成直流电是可能的。
It is possible to convert alternating current to direct current.
交流电，直流电。
交流电，直流电。
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