查询词典 Ac

Sinusoidal AC circuit computer-aided analysis of the theory and implementation process.

计算机辅助正弦交流电路分析的理论及实现过程。

Elevator sliding door is usually driven with a DC or AC rotary motor.

传统的电梯门机采用的是直流或交流旋转电机来实现。

Because a bulk smoothing capacitor is usually installed on the DC side of many AC to DC converters, the characteristics of harmonic loads will be influenced by this capacitor. Nowadays, shunt active power filters can't reduce harmonics effectively for this voltage type harmonic-producing load. Therefore, a series active power filter is designed to meet the requirements of voltage-sourced harmonic loads. Both source current and load voltage are detected in order to reach the compensation voltage for the SAPF.

由於许多交直流电源转换器均在直流端并联一直流电容以作为稳压之用，此大电容将造成负载谐波特性的改变；此类谐波源负载，如果使用现今常见的并联型主动式电力滤波器并不能很有效解决此类谐波问题；因此本文将采用串联型主动式电力滤波器，并配合同时量测电源电流及负载电压的混合式控制模式，即可有效解决此类谐波问题。

20 Output smoothing In a practical circuit, when a capacitor is directly connected to the output of a bridge, the bridge diodes must be sized to withstand the current surge that occurs when the power is turned on at the peak of the AC voltage and the capacitor is fully discharged .

在实际电路中，当一个电容器直接连接到桥式整流器的输出端时，桥式结构中的二极管必须能够承受交流电压峰值时开启电源和电容完全放电所产生的电流浪涌。

The expected direct solar radiation per day that is required to sustain such ac- tivity is 14 minutes at that location.

在那个测试地点，我们预计的足以支撑这个活动的每日直接太阳能辐射必须是14分钟。

Says the sov ereign LORD, and I will n o longer ac

喜悦你们、也从你们手中收纳供物。

Another common single-phase AC motor is the split-phase induction motor, commonly used in major appliances such as washing machines and clothes dryers.

另外一种常见的单相交流电机就是分相感应电机，通常用于像洗衣机和干衣机这样的大型家用电器中。

The method is in a constant exchange between the squirrel cage induction motor access SCR as AC voltage controller.

该方法就是在恒定交流鼠笼异步电动机之间接入晶闸管作为交流电压控制器。

It is suitable for the exchange of 380V, 50 (60) Hz, rated current 800A and below a single or more three-phase AC squirrel cage induction motor.

它适用于交流380V，50（60）Hz，额定电流800A及以下的单台或多台三相交流鼠笼型异步电机。

The methodis in a constant exchange between the squirrel cage induction motoraccess SCR as AC voltage controller.

该方法就是在恒定交流鼠笼异步电动机之间接入晶闸管作为交流电压控制器。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。