查询词典 Ac

In power converters, unbalances generate undesirable DC ripple and non characteristical harmonic s in the AC side.

在电力变换器中，不平衡会产生不希望的直流波动以及交流侧无特征的谐波。

Methods:Oxford cup agar scattering experiment and colony count were adopted to assay influences of Honeysuckle,Chordate houttuynia,Artemisia apiacea,Radix isatidis and Coptis chinensis on growth and conservation of Lactobacillus plantarum,L.ac...

结果 ：1%和 2 %的金银花、青蒿对植物乳杆菌及嗜酸乳杆菌的生长和保存活性表现出明显的促进作用，鱼腥草的作用受其浓度的影响，而黄连和板蓝根对它们的生长和保存有一定抑制作用。

Policy solves chrestomathy second admit by examination occupy whole journey publicly the introduction to the society, officeholder admitted by examination 2007 the working general concerned regulation ac......

政策解读本次招考将全程向社会公开据介绍，2007年公务员招考工作将根据公务员法和公务员录用的。。。。。。

Because any reports on the active control of rotating disk haven't be seen in China up to now, and this experiment research is important, so the complete set of active control system of rotating disk are built independently. The push-pull type electromagnet is applied to control the vibration of the circular disk. The power amplifier circuit that can respond to wide scope in frequency from DC to AC is designed by improving the existing circuit. The sensor signal is first low-pass filtered, then the proportional control plus the differential control circuit easy used in practice are applied to finish the more effective control. The electromagnetism shield is used as possible to decrease the signal disturbance from the electromagnet to eddy sensor.

考虑到目前国内尚未见到有关旋转圆盘振动主动控制的相关报导以及实验的重要性，自行设计制作了一整套旋转圆盘振动主动控制系统：提出并采用推拉型电磁作动器来控制圆盘的振动；在改进现有电路的基础上，自行设计了具有较理想特性的驱动电磁作动器的功率放大器；根据实际控制环境的特点，设计了先进行低通滤波，再采用比例和实用的近似微分电路构成的控制器，并采用了电磁屏蔽来减小电磁铁对传感器的干扰，以实现更有效的控制。

Vibrational circular dichroism is a useful technology to measure the circular dichroism of chiral molecules in the IR region, which remarkably expands the application of circular dichroism to the determination of AC.

振动圆二色谱是在红外波长区域测定分子圆二色性的一种新方法，极大地扩展了圆二色谱的应用范围。

Chapter 3 constructs the general solution of the clastic equations which could be programmed by the symbolic language-Maple.

第三章运用"AC=BD"的基本思想给出了弹性力学方程组一般解的一种求法，并在符号计算软件Maple上编程予以实现。

Commutation failure is one of the most frequent faults in AC/DC systems and continuous commutation failures will lead to closedown of DC system.

换相失败是交直流输电系统最常见的故障之一，连续的换相失败还会引发直流闭锁，影响系统稳定运行。

Base on the SINUMERIL 8M NC gantry milling machine control system and electric cortrol tank of WALDRICH COBURG in Germany company,we propose an improve scheme with simens CNC to control AC servo move forward system.

针对德国WALDR ICH COBURG公司的SINUMER IL 8M数控龙门铣的控制系统及电气控制柜，提出了用西门子CNC控制交流伺服进给系统进行改造的方案。

To do a cold boot with your computer, turn the ac power off, count to ten and then turn it on.

电脑冷启动，需要关闭交流电源，然后数到10，再打开电源。

Push the power button, sometimes to normal boot, shut down the boot after a short period of time can, over time (such as half-time) will not boot, when the power indicator light, the system does not respond, you must use the Reset button to cold boot in order to guide system, which in the AC power supply and battery-powered face next.

推动电源按钮，有时能正常开机，关机后短时间内可以再开机，时间一长就无法开机，此时供电指示灯亮，系统没有反应，必须使用冷启动Reset按钮，才能引导系统，这种情况在交流电供电和电池供电下都会遇到。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。