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To improve the stability of Arcjet discharge plasma in low current and high voltage mode, research on the demand of output characteristics of Arcjet Power Conditioning Unit was conducted. In this paper, based on PWM invertors and current mode control, using MOSFET as the main power device, an Arcjet Power Conditioning Unit was developed. Through adding a closed loop feedback circuit of output voltage, it can make the output characteristics of PCU be positive resistance to ensure the stability of Arcjet discharge plasma. The experiment indicates that this PCU can make Arcjet engine work at high voltage mode (100 V, 10 A) and ensure the stability of arcjet discharge plasma. Finally, it provides the experimental data of Arcjet when working.

为了解决小电流、高电压下电弧火箭等离子体的稳定性问题，研究了电弧火箭发动机对电源调理单元的输出特性要求，基于逆变电源脉宽调制技术与峰值电流型控制原理，以MOSFET为主功率器件，研制了一台电弧火箭电源调理单元，给出了Arcjet工作时的实验数据，通过增加PCU输出电压的闭环反馈电路，可以使PCU的输出外特性呈现正阻性，保证电弧的稳定燃烧，实验结果表明，该电源调理单元能使电弧火箭发动机达到高电压工作模式(100V， 10A)，保持电弧工作的稳定性。

The company is speciality producing Swing switch, Multi-functional tact switch, Tact switch, Micro switch, Power switch, Power socket, Toggle switch, AV pin jack, DC power jack, CK2.5/3.5 phone jack, Boat switch etc.

公司专业生产摇头开关、多功能轻触开关、轻触开关、微动开关、电源开关、电源插座、拨动开关、AV同芯插座、DC电源插座、CK2.5/3.5插口、船形开关等系列产品。

The main products include 2.5/3.5 phone jacks, DC power jacks, 6.35 phone jacks, AC power socket, Tact switch, Boat switch, Slide switch, Push button switch, Micromove switch, Power switch, Swing switch, Door lock switch, AV pin jack board, WP push terminal and Connectors etc.

主要产品有PJ2.5/3.5耳机插座、DC电源插座、6.35耳机插座、AC电源插座、轻触开关、船形开关、拨动开关、按键开关、微动开关、电源开关、摇头开关、门锁开关、AV同芯插座、WP外接线插座、连接器等。

The company is speciality producing Swing switch, Multi-functional tact switch, Tact switch, Micro switch, Power switch, Power socket, Toggle switch, AV pin jack, WP push terminal, DC power jack, CK2.5/3.5 phone jack, Cross spring, Boat switch etc.

公司专业生产摇头开关、多功能轻触开关、轻触开关、微动开关、电源开关、电源插座、拨动开关、AV同芯插座、WP外接线插座、DC电源插座、CK2.5/3.5插口、叉簧开关、船形开关等系列产品。

The main products are: all kinds of out of style, power distribution cabinets, as well as fixed capacitance cabinet; central air-conditioning automatic control system; a variety of lighting boxes, wall-mounted box, outdoor waterproof box, meter boxes, power boxes; a variety of fire control box , joint boxes, console; a variety of dual-power switch box, since the lotus root decompression starter boxes, variable frequency constant pressure water supply system.

主要生产的产品有：各种抽出式、固定式配电柜以及电容柜；中央空调自动控制系统；各种照明箱、挂墙箱、室外防水箱、电表箱、动力箱；各种消防控制箱、联动箱、控制台；各种双电源切换箱、自藕减压起动箱、变频恒压供水系统。

Button D is the power and timing key : When plug in the power, the green light on and the machine will be in standby mode, press one time is on and default timing as an hour, and press twice up to two hours, the third time is three hours, followed by cycle, If you want to turn it off,just long press it and last for 2 seconds,the machine is shut down and the returned to the standby mode,if you want to stop here just power take off.

此键为开机和定时键：插上电源按键底有绿色灯光，此时为待机状态，按一次此键为开机，主机默认定时1小时，再第二次定时2小时，按第三次定时3小时，依次循环，长按2秒为关机，整机又返回待机状态。

Power has an adequate built-in area of 330 kilovolts, five 220-kilovolt substations, Longyangxia, salt pot Gorge Power Station are the largest network in our region to the northwest, north around the Yaojie Coal Mining Bureau of the Treasury thermal power generation Plants, Xiangtang, such as hydropower station is being developed, basically forming a water and coal-fired electricity industry chain.

电力充足辖区内建有一座330千伏、五座220千伏变电站、龙羊峡、盐锅峡电站的大网皆经我区输往西北、华北各地，窑街矿务局务质煤火力发电厂，享堂水电站等正在筹建，基本形成了水、煤电产业链。

Under the aspect of rapidly developed wind power in China,the bottleneck problems of wind power development have been confronted within the leading district of wind power development.

在中国风电高速发展的大好形势下，风电发展较快的地区先后遭遇到发展&瓶颈&，如何摆脱风电发展&瓶颈&束缚，促进中国风电健康发展成为关注的焦点。

As a fault occurred on a distribution line, the breaker and non-communication Protection in the faulted segment's ends will operate to clear the fault segment. The segments of lost power supply will again get power supply from back-up source by the control unit, so that its power supply will be restored.

配电线路发生故障后，故障区段两端的断路器在配电线路无通道保护的作用下动作跳闸，切除故障部分；失去电源的非故障区段在备用电源自动投入单元的控制下，投入备用电源，恢复相应区段的正常供电。

As a result of market of 3 gorge power cross large area property, reach the construction that considers market of prospective China power, the hierarchy of power market is a very important, problem that is worth to discuss.

由于三峡电力市场的跨大区性质，及考虑到未来中国电力市场的建设，电力市场的层次结构是一个十分重要、值得探讨的问题。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"