1.
The unit is not disconnected from the AC power source (mains) as long as it is connected to the wall outlet, even if the unit itself has been turned off.
即使本机的电源已经关闭，但只要它还连接在墙上的电源插座上，就未脱离交流电源（主电源）。
2.
One Maintenance Case for the Power Panel of Ventilator
Tbird AVS型呼吸机主电源板故障维修一例
3.
active AEM system
主动源式航空电磁系统
4.
clock, master, battery, accumulator or mains powered
主时钟,由电池、蓄电池或交流电源驱动
5.
Design of RC snubber for main circuit of CO_2 arc welding power source
CO_2弧焊电源主电路中RC缓冲电路设计
6.
Abstract The development of inverter welding power source is the inexorable trend of welding power source orientation.
逆变焊接电源是焊接电源的主要发展方向之一。
7.
Main Circuit Design of IGBT Inverter for SMAW;
IGBT逆变式手弧焊电源主电路的设计
8.
Research on Three-phase EPS Main Circuit Based on LM3S615
基于LM3S615的三相应急电源主电路研究
9.
The Democratic victors were flushed with congratulations.
获胜的民主党人开始源源不断地接到贺电。
10.
Power Side Surge Protection of Electrical and Electronic Equipment --Basic Parameters of SPD
电气、电子设备电源侧的电涌保护——电涌保护器主要参数
11.
Set the main switch selector to (L) lock to turn off the power.
把主选择开关转到l（锁定）,断开电源。
12.
A major area for energy savings is the prosaic electric motor.
普通电机是节约能源的一个主要领域。
13.
Electric utilities and industrial plants are the principal producers.
发电厂和工厂是硫氧化物的主要来源。
14.
Main source: coal-fired power plants and automobile exhaust.
主要来源：汽车尾气和燃煤发电厂。
15.
Application of FPGA in Power Supply Control System of CSRm
FPGA在CSR主环电源控制系统中的应用
16.
Test system about PC motherboard power based on USB 2.0 interface
基于USB 2.0接口的PC主板电源测试系统
17.
Your major distraction are e-mail, telephone, visitors and yourself.
分心的主要来源是电邮，电话，访客及你自身。
18.
Robots can be controlled autonomously or by a PC and connected to electric power supply.
机械人可以是自主控制的或连接电脑和电源。