查询词典 current

We also know that the ratio between collector current and emitter current is called α.

我们还知道集电极电流与发射极电流之间的系数是α。

The experimental results show that the validity of current collector is greater than 97% and the measurement error of the leakage current is less than 1%.

试验结果表明：采集环的采集效果大于97%；泄漏电流的测量误差小于1%。

At low frequencies, the current in the collector of a transistor is in phase with the applied current at the base.

在低频段，晶体管的集电极电流与施加在基级的电流同相。

It takes only a small change of base current to control a relatively large collector current.

当用户外出不在基站服务区域内而无法接受呼叫时，无绳电话系统就可以为这些

The current for pantograph shall be increased especially for the metro vehicle equipped with the third rail current collector.

需要增加受电弓受流，特别是对采用第三轨受流器的地铁列车。

Therefore, if we have a way of holding emitter current constant through a transistor, the transistor will work to regulate collector current at a constant value.

于是，只要我们能让晶体管的发射极电流保持恒定，它就能保持发射极电流为恒定值。

We know that in a transistor operating in its active mode, collector current is equal to base current multiplied by the ratio β.

我们知道，当晶体管工作在放大区时，集电极电流等于基极电流乘以系数β。

We've seen already how maintaining a constant base current through an active transistor results in the regulation of collector current, according to the β ratio.

我们已经看到有源晶体管的恒定的基极电流是如何以系数β控制集电极电流的。

How to eliminate the disturbance of the influence which creates to the current collector, provide the pure power source for the current collector, is a problem which each UPS manufacturer faces.

如何 消除各种各样的干扰对用电设备造成的影响，为用电设备提供高可靠性、高质量的纯净电源，是各 UPS 厂商面对的问题。

How to eliminate the disturbance of the influence which creates to the current collector,provide the pure power source for the current collector,is a problem which each UPS manufacturer faces.

如何消除形形色色的干扰对用电设备造成的影响，为用电设备提供高可靠性、高质量的纯净电源，是各UPS厂商面对的问题。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。