HBTs : Concept: emitter efficiency, base transport, base resistance, junction capacitance.

The region in a transistor between the emitter and the collector.

基极晶体管中发射极和''.'集'.''''.'电'. ''极之间的区域.

We shall take the typical emitter-to-base resistance as about 250 ohms.

我们取发射极基极电阻的典型值为250欧姆左右.

Its key materials mainly include emitter materials, electron-transporting materials and hole-transporting materials.

其核心材料主要包括发光材料, 电子传输材料和空穴传输材料.

The base region is always very much narrower than the emitter or collector regions.

基极总是比发射极和集电极薄得多.

The α emitter and target material should be closely bonded.

α发射体和靶物质应当是紧密结合的.

A transistor has three electrodes, the emitter , base and the collector.

形成晶体体管有三个电极, 即发射极, 基极和集电极. (电子)

We have been considering the transistor with a current fed into the emitter.

我们所研究的晶体管都是把电流馈入发射极.

UV unit: High speed low pressure UV emitter; UV sensor with alarm.

紫外线单元: 高速低压紫外线放射器; 带报警系统的紫外线传感器.

Hence a good absorber is a good emitter, and a poor absorber is a poor emitter.

所以良吸收体就是良发射体, 劣吸收体就是劣发射体.

The dimension of the emitter is set through the Size numeric button.

发射体的维度通过尺寸数字按钮设置.

I am collecting additional information on new thermal IR emitters employing MEMS technology Absorption Spectroscopy methodology.

我正在收集使用MEMS( 微型机电系统)技术的新型红外热量发射器的额外信息.

Conversely, the same apparatus can act as a directional receiver to precisely locate radio emitters.

反过来, 同样的仪器,可以作为定向接收器,以精确定位无线电发射器.

Emitters on trickle system can be blocked by precipitate.

灌溉系统中的发射器会被沉积物所堵塞.

Then the emitters on the inputs are not able to source current.

那样,在输入的发射极不能源电流?

We cannot meet this challenge unless all the emitters of greenhouse gas pollution act together.

所有的温室气体排放大国必须采取共同行动,否则我们就无法迎接这一挑战.

The parameterized design of emitters is a method facing rate and structural character.

灌水器参数化设计是一种面向流量的结构特征参数化设计方法.

Thus, the study on the hydraulic performance and anti-clogging ability of emitters has important significance.

滴头是滴灌系统最为关键的部件之一,因此, 对滴头水力性能和 抗 堵塞性能的研究有着极为重要的意义.

We cannot meet this challenge unless all the largest emitters of greenhouse gas pollution act together.

除非所有主要温室气体排放国联手行动,否则我们无法应对这一挑战.

Emitters on trickle system can be blocked by precipatate.

沉淀使灌溉系统中的发射器发生被阻塞.

Scattered remains of fireworks lay ignored and disappointed , emitting their last warm, sulphurous breath.

爆裂了的鞭炮的残骸凌乱地躺在街心, 发散它们的最后的热气.