查询词典 transistor

The field of electronics includes the electron tube, transistor, integrated circuits and so on .

电子学的范围包括电子管、晶体管和集成电路等。

Within the last few decades, the electron tube has been largely replaced by the transistor .

在近几十年里，电子管已大大为晶体管所取代。

In other words, transistor emitter current will closely equal diode current at any given time.

或者说，晶体管发射极电流随时都接近二极管电流。

The edge-crowding-effect of emitter current in a transistor caused by self-bias of base resistor is one of the factors to limit its capability of loaded current.

由基区电阻的自偏压引起的晶体管发射极电流集边效应，是限制晶体管承载电流能力的因素之一［1-4］。

The symbol for a PNP transistor has an arrow on the emitter indicating the diredtion of current flow, always towards the base.

PNP晶体管有一个表住在发射极的箭头符号用来指示电流的流向，总是围绕在基极的。

Following this rationale, if we were to hold the base-emitter voltage of a transistor constant, then its emitter current should likewise be constant, given a constant temperature

根据这个基本原理，如果我们能保持晶体管发射结电压恒定，当温度恒定时，发射极电流也将保持恒定。

Current flow between the emitter and base controls the current flow between the emitter and collector.the emitter of the transistor is the most heavily doped so it has the most excess electrons or holes.

由发射极到基极间的电流控制发射极到集电极间的电流，晶体管的发射极是重掺硅型的，所以它有过量的电子或空穴。练习翻译？遇到难题？快来翻吧

Note 4: Assumes that the external PNP pass transistor has negligible B-E reverse-leakage current when the emitter is biased at 0V and the base is biased at 4.2V.

注4：假设的外部PNP晶体管已经成为微不足道的反向漏电流时，发射器是在0V和有偏见的基础是偏颇于4.2V。

This constant emitter current, multiplied by a constant α ratio, gives a constant collector current through Rload, provided that there is enough battery voltage to keep the transistor in its active mode for any change in Rload's resistance.

这个恒定的发射极电流，乘以恒定的系数α，就得到流过负载Rload的恒定的集电极电流。前提是电池电压足够高，不论Rload如何变化，晶体管都能工作在放大区。

Well, the α ratio works similarly: if emitter current is held constant, collector current will remain at a stable, regulated value so long as the transistor has enough collector-to-emitter voltage drop to maintain it in its active mode.

系数α的作用与之类似：如果发射极电流保持恒定，只要集电极－发射极电压足以使其保持在放大区，集电极电流也将稳定保持。

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。