power feed

Although self-driving power head for combined machine tool has been obsolete, such typical speed-regulating loop as feed power supply still has a bright future due to its high speed-stiffness and efficiency.

虽然组合机用自驱式动力头已被淘汰，但作为其进给动力源的该调速回路，由于其速度刚性和效率均高，仍将有广泛的用途。

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In the HPM radiation techniques, the design of HPM feed system becomes the key, because the feed system is the ultimate power limit factor of the antenna system.

在高功率微波辐射技术中，馈源系统是天线系统的最终功率容量限定因素，因此高功率馈源系统的设计成为关键。

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Beijing is connected power feed limited company at official on September 8,1998 start business.

北京通威饲料有限公司于1998年9月8日正式开业.

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At first, the characteristics of the driving power amplifier were introduced, and the overall design method of the driving power amplifier was put forward, and then constant-current source circuit and power amplifier circuit of current feed-back were developed separately.

首先，介绍了高频激振器驱动电源的特点，提出了驱动电源的整体设计思路，分别设计了直流恒流源电路与电流反馈型功率放大电路；

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The effects of process parameters such as laser power, welding speed, wire feed rate, defocusing distance, laser-wire distance, filler wire angle, shielding gas are studied in detail.

研究了工艺参数对焊缝成形质量的影响，如激光功率、焊接速度、送丝速度、离焦量、光丝间距、送丝角度、送丝方式以及保护气体等，并获得了优化的工艺参数。

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The multistage feed water pump is one of the important equipment of thermal power plant steam circulation system, and the axial force balance mechanism is an important component part of multistage feed water pump.

多级给水泵是火力发电厂汽水循环系统中的重要设备之一，轴向力平衡机构是多级给水泵的重要组成部分。多级给水泵的轴向力平衡装置设计与分析，具有工程背景和实用价值。

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Discuss the Bias feed circuits of pulsed class C solid-state power amplifier, about the Bias feed circuits, filter the waves, store energy, and so on.

对脉冲C类固态放大器中偏置馈电电路部分作一些探讨，研究偏置馈电电路及其供电储能、滤波等，使放大器更稳定可靠地工作。

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Two groups of matching relation of the weld speed and the wire feed rate were found in a condition of invariable laser power and focus position.

前者试验获得了一定激光功率和离焦量条件下两组焊接速度和送丝速度的匹配关系，并发现填充焊丝的加入对焊缝咬边现象确有改善；

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This paper presents a high power feed system for 7.3 m Cassegrain antenna.

介绍用于?7.3mCassegrain天线的高功率馈源喇叭的设计.

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The maximum power of liquid-feed direct methanol/ oxygen three-cell stack, where available MEA area was 9 mm2, was 0.285W, and its output voltage and current was 0.7V and 0.407A respectively.

膜电极有效面积为9cm2的的液相进样直接甲醇/氧气燃料电池三电池电堆的最大功率为0.285W，此时输出电压为0.7V，输出电流为0.407A；

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A laser overlaying experiment was studied on 45 steel matrix with special alloy wire by using different laser power, scanning velocity and wire feed rate.

在45钢基体上，选用不同的激光功率、扫描速度、送丝速度，用专用焊丝进行堆焊试验。

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The boiler MFT ( master fuel trip) protection was actuated during start up of feed water pump A of Unit 1 and 2 in Huaneng Shantou Power Plant.

华能汕头发电厂1号、2号机组发生启动给水泵时锅炉主燃料跳闸（MFT）的事故。

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The paper discusses several problems which are commonly encountered while applying uninterruptable power, such as: parallel power feed, leakage, switch-on or generator switch-on, parallel connection of UPS and redundancy.

对不间断电源使用过程中经常遇到的几个问题，如双路供电、漏电、开关及发电机接入、UPS的并联及冗余等问题进行了简单的探讨。

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