查询词典 Ac

The adaptor is a must for numerous computer peripherals. As an important computer exporter worldwide, the dc power supply industry is bloomy in Taiwan. In today's dc power supply market, the switch power supply has replaced the linear adaptor as main stream in the industry globally for its compact size. However, SPS has a serious problem of high frequency electromagnetic interference and causes harmonic feedback for the AC power source compared with linear adaptor. The energy consumption is also worse for SPS than linear adaptor.

摘要整流器是许多电脑周边设备不可或缺的电能，而台湾又是电脑及周边产品出口大宗国，因此电源供应器产业澎勃发展是必然的，其中轻薄短小及输出稳定之交换式电源供应器(Switch Power Supply：SPS)，已取代传统线性整流器的地位，成为外销主力并取得世界龙头地位，然SPS有严重的高频电磁干扰问题(150KHz~300MHz)，在交流电源侧产生的谐波含量，也较线性整流器来得严重，为一耗能产品。

The blushless DC motor has been developed intensly in the latest years. This kind of motors have the merits of both the DC motor and the AC motor, including the high power density and small volume. But it needs a complex and expensive control system, which becomes the biggest obstucle for the blushless motor to be further used.

电气传动域中的无刷直流电机近年来得到了飞速的发展，该电机将交流电机和直流电机的优点相结合，并且具有较高的功率密度和较小的体积，但是其控制系统复杂，代价大，这些都困扰着它在民用领域的进一步应用。

With PWM control chip L4981A, the bridgeless AC/DC topologic circuit is constructed. Its principal is analyzed and simulated with PSpice, its design process is introduced,and the experimental result is shown.

通过高功率因数PWM控制芯片L4981A，构建桥式AC/DC拓扑电路，分析了其工作原理并进行了系统仿真，叙述了拓扑电路的设计和参数选取过程，最后给出了样机实验结果。

NC flame / plasma cutting machine used mainly targeted: the United States sea-EDGE, the United States BURNY and high-quality China-made CNC system, import AC Servo System, Japan PLC programmable logic controller, and so on.

我公司生产的华强牌数控火焰/等离子切割机，自动化程度高，操作简便，且精度高，切割质量好。

It is important for AC timing field to combine the direct torque control and bushless double-fed motor.

把直接转矩控制技术应用到无刷双馈电机，可以使二者的优点得以结合，对于交流调速领域具有重要意义。

This suggested that Ni can form different chemical states on the Ni/AC catalyst calcined at different temperatures.

这说明不同温度焙烧后的催化剂中Ni形成了不同的化学形态。

Also attending the press conference were designer Giorgio Armani, a strong Special Olympics supporter, Olympic gymnast Igor Cassina and Adriano Galliani, President of AC Milan.

同时出席新闻发布会的还有大力支持特奥会的时装设计师乔治。阿玛尼，奥运会体操选手伊戈尔。卡西纳，以及AC米兰的经理阿德里亚诺。加利亚尼。

According to Turkish and German media, Italian giants AC Milan are observing Galatasaray defender Servet Cetin.

据土耳其和德国媒体报道，意大利豪门AC米兰正在观察加拉塔萨雷的后卫赛尔维特-塞金。

This instrument can meter the electric level, frequency spectrum, carry to noise ratio , A/V , cobbly ratio , voltage s of the AC trunk line and the battery.

该场强仪可以对有线电视系统的电平、频谱、载噪比、A／V比、系统不平度、交流干线和电池电压等进行测量，并通过液晶显示，结果保存于EPROM中。

In this paper, a combinatory controller used in an AC drive system is introduced. The advantage of combinatory controller is used to improve the system's performance in dynamic and steady characteristic.

介绍一种用组合控制器控制的交流传动系统，该系统综合利用模糊控制和PID控制的优点，来提高系统的动态和稳态性能。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。