查询词典 power-driven

Along with the electric power electronic technology development and the innovation, causes the switching power supply technology in to innovate unceasingly, this cost point of inversion to the low output electric power end migration, this has provided the widespread development space day by day for the switching power supply.

随着电力电子技术的发展和创新，使得开关电源技术在不断地创新，这一成本反转点日益向低输出电力端移动，这为开关电源提供了广泛的发展空间。

Input Power Factor Correction: The rectifier shall be power factor corrected so as to maintain an input power factor of 0.98 lagging to unity at all load levels to ensure generator compatibility and avoid reflected harmonics from disturbing loads sharing the utility power.

UPS模块的设计须可使之作为双变换和在线反向输送系统在下列模式下正常工作。A。正常模式：逆变器须可不断向临界负载输电。整流器/电池充电器须从交流电源获取电能并向逆变器供电，同时以浮动方式给电池充电。

In order to improve the stability and reliability of the models, especially in the marine platform drilling rig in order to meet the high standards and strict power requirements, CPC Jinan Diesel power demands in accordance with domestic oil market situation and the company markets products in the oil field use, decided to 4012 Long-stroke diesel engine is fully optimized and updated, and comprehensively improve the models of economy, adaptability, especially in reliability to achieve new breakthroughs to make it into a completely independent intellectual property rights, high reliability, power, good , fuel consumption is low, high degree of automation of the diesel engine, making it the leading, world-class level, can completely replace the current oil market, the corresponding power of China's imports of aircraft-grade new model.

为了提高该机型的稳定性和可靠性，特别是为了满足海洋平台对钻机动力的高标准严要求，中油济柴根据国内石油市场动力需求现状和公司产品在油田市场的使用情况，决定对4012型长冲程柴油机进行全面优化和更新，全面提高该机型的经济性、适应性，尤其在可靠性方面实现新的突破，使其成为具有完全自主知识产权的、可靠性高、动力性好、油耗低、自动化程度高的柴油机，使其成为国内领先、具备世界一流水平、可完全替代目前我国油田市场上相应功率档次进口机的新机型。

The following functions can be realized: Measuerment:the effective values of three phase current and voltage, power frequency, active power, reactive power, power factor etc. Motor control: direct starting, converse starting, star and triangle starting, self-starting. Protection:thermal overload protection, current leakage protection, open-phase protection, three-phase unbalance protection, over voltage protection, loss voltage protection, low load protection and fault warning and fault dates memory. Communication: communication of the computer in control room and the microcomputer monitor in the spots is realized by the interface of RS-485. The motor is not only controlled in the spots but also in control room. The dates, information and some functions are shared by the spots and control room too.

该电动机监控器以80C196KC单片机为核心，通过采样三相电流﹑电压信号来实现以下功能：三相电流﹑电压有效值，电网频率，有功功率，无功功率及功率因数等的测量；对电动机实现直接、正反转、星三角及自起动控制；对电动机实现热过载、漏电、断相、三相不平衡、过压、欠压及轻载保护，对故障进行报警及数据记忆；通过RS-485串行接口与中央控制室计算机实现通信功能，对电动机既可本地，也可远程控制；实现控制现场与控制室之间数据、信息、功能共享。

Serialization and mass construction of nuclear power plants; active absorption of the third generation nuclear power technology; promotion of inland nuclear power construction; development of fast breeder nuclear power plant; and establishment of nuclear fuel cycle system.

指出了我国核电可持续发展的几个重要问题，即核电发展要实现系列化规模化；积极消化吸收第三代核电技术；大力推进内陆核电站的建设；开发快中子增殖堆核电站，构建核燃料循环体系等。

Love of power is greatly increased by the experience of power ,and this applies to petty power as well as to that of potentates ,In the happy days before 1914,when well-to -do ladies could acquire a host of servants, their pleasure in exercising power over the domestics steadily increased with age .

的确，重要人物生活中最强烈的动机就是权力欲，体验到权力后便增加了人的权力欲，无论是小小的芝麻官还是至尊的当权者都是如此，在1914年以前那段幸福的日子里，家境富裕的太太们能雇用一帮仆人，行使权力的快乐与年龄俱增。

The pump shaft power is generally water, power, friction loss of power and leakage power of these three parts combined.

泵的轴功率一般为水功率、摩擦功率和泄漏损失功率这三部分的总和。

Experimental results showed the full bridge resonant laser power supply reaches the index of high power and efficiency; has the advantages of small volume, light weight and high precision; can make full use of the rated value of power switch and the power supply even more reliable.

实验表明，基于CPLD的全桥谐振式激光电源能够达到大功率，高效率的技术指标；具有体积小，重量轻，精度高的特点；能更充分合理的利用功率管的定额参数，使电源工作运行更加可靠。

For a constant impedance load or a constant current load, if regulating the secondary voltage by making the changer ratio higher, the primary voltage will get much lower while the load power is restoring, and the power will then lose balance. For a constant power load or a motor load, since the change of OLTC has no or little influence on the load power, the voltage of primary side almost has no change whether the tap operates or not. The influence on the voltage stability with respect to the dynamic restoring load which is sensitive to voltage is also discussed.

对于恒阻抗和恒电流型负荷，在变比上调恢复副边电压的情况下，负荷功率恢复，又使原边电压下降，可使系统功率失去平衡，而对于恒功率负荷和电动机负荷，OLTC的变化不会引起负荷功率的恢复，OLTC的变化对系统电压稳定有利；同时研究了对于一般电压敏感和具有动态恢复特性的负荷，反调分接头对电压稳定性的影响。

Basing on TI Corporation's DSP chips TMS320LF2407A as high-voltage protection system CPU in this article, AC analog which comes from high voltage power grid is converted to digital value which DSP can process by 14-bit A/D converter MAX125, monitoring the entire status of the high-voltage power grid in real-time, tripping off by controlling external relay quickly when abnormal operation happened, turn off the power grid to protect the power grid and other electrical equipment.

本文是基于TI公司的TMS320LF2407A型DSP芯片作为高压电继电保护系统的中央处理器。通过MAX125的14位A/D转换器采集高压电网中交流模拟量来转换为供DSP处理的数字量，从而进行数据分析处理，对整个高压电网的运行状况进行实时监控，当遇到不良运转时控制外部继电器迅速跳闸，切断电网，从而保护整个电网及其他用电设备。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐