abbr.直流电，美国哥伦比亚特区

DC, or Direct Current, flows in a single direction without reversing."
DC，即直流电，电流在一个方向上流动，不会反转。
The electric motor in my car runs on DC power from the battery.
我车上的电动机由电池提供的直流电驱动。
A solar panel converts sunlight into direct current electricity.
太阳能板将阳光转化为直流电。
In a circuit, AC and DC can coexist, but they are often separated for efficiency.
在电路中，交流电和直流电可以共存，但为了效率通常会分开处理。
Batteries are typically used to store DC power for portable devices.
电池通常用于为便携式设备储存直流电。
DC voltage is safer than alternating current (AC) when handling electronic components.
直流电压在处理电子元件时比交流电更安全。
The voltage regulator in a computer adjusts the DC output to maintain a stable system.
计算机中的稳压器调整直流输出以保持系统稳定。
DC trains are popular in some cities for their quiet operation and reduced maintenance requirements.
直流火车在某些城市受欢迎，因其运行安静且维护需求较低。
Electricians use DC testing tools to diagnose problems with electrical systems.
电工使用直流测试工具来诊断电气系统的故障。
A common method of converting AC to DC is through the use of a rectifier.
将交流电转换为直流电的一种常见方法是使用整流器。