他换掉了一个无用的电子管。
我会用粘胶把这些电子管粘起来。
I would use a cohesive glue to weld the tubes to each other.
电子管和晶体管能放大输入的信号。
所以，电子管被认为将绝迹。
晶体管和电子管相比有许多优点。
本文论述晶体管与电子管相比的优点。
This paper deals with the advantages of transistors over electron tubes.
具有直接或间接加热的阴极的电子管三极管。
阳极电子管中的阳极。
具有直接或间接加热的阴极的电子管五极管。
具有直接或间接加热的阴极的电子管四极管。
第二代机器使用改良的微电子管和后固体电路。
The second generation of machines utilized improved miniature electronic tubes, and later solid-sate circuits.
比较晶体管变频器与电子管变频器的主要区别。
Main differences between transistor converters and vacuum tube converters are compared.
电子学的范围包括电子管、晶体管和集成电路等。
The field of electronics includes the electron tube, transistor, integrated circuits and so on.
电磁波是由一种称为速调管的微波电子管产生的。
The electromagnetic wave is produced by microwave tubes called klystrons.
半导体装置也称为晶体管，在许多场合替代电子管。
Semiconductor devices, called transistors, are replacing tubes in many applications.
本报告总结了电子管、半导体和元件三方面的新成就。
This report summed up the new achievements made in electron tubes, semiconductors and components.
电视塔的上一次改造在2002年，设备由电子管更新为晶体管。
The last transformation at the tower was done in 2002, when equipment was changed from tube to transistor.
比如说，如果能用‘可控电子管’这种说法，就不要用‘晶体管’。
You don't say 'transistor' when you can use 'controllable electronic valve' -that sort of thing.
电子管通常用来放大，而真空管则是电子管的另一名称。
An electron tube is generally used for amplification, and vacuum tube is another term for this device.
速调管一种用速度调节的方法放大或产生超高频率的电子管。
An electron tube used to amplify or generate ultrahigh frequency by means of velocity modulation.
体积小和消耗功率低，这两个重要因素使晶体管比电子管优越。
Small size and low power consumption are the two important factors that make transistors preferable to electron tubes.
第一代电子计算机使用电子管和其他元件，这使设备又大又笨。
The first electronic computers used vacuum tubes and other components and this made equipment very large and bulky.
中间极，二次发射电极一种用于一定电子管作第二次发射电极。
An electrode used in certain electron tubes to provide secondary emission.
拖到绘图页后，可以添加具有直热式或旁热式阴极的电子管五极管。
Drag onto the page to add a tube pentode with directly or indirectly heated cathode.
而另一方面电子学则论述自由电子在电子管或半导体里流动的情况。
Electronics, on the other hand, deals with the movement of free electrons in a vacuum or in semiconductors.
这些有着一双发现眼睛的人们会被这里的经典电子管海报和手绘广告标语所迷住。
Those with an eye for design will be enthralled by the vintage Tube posters and hand-painted advertising slogans.
直至电子管稳定性及其使用知识积累到一定程度，才能设想和造出第一台电子计算机。
It was only the rise in electronic-tube stability and knowledge of its use that made it possible to conceive and build the first electronic computer.
在1958年，计算机已经从由电子管驱动的庞然大物演变成较小、较轻的晶体管机器。
In 1958, computers had already evolved from huge tube-driven hulks into smaller, lighter, transistorized machines.
冯·诺依曼从数量上比较了大脑神经元和真空电子管的运算速度，大胆暗示两者可以类比。
Von Neumann quantitatively compared the speed of brain neurons and the speed of vacuum tubes, boldly implying the two could be compared.
冯·诺依曼从数量上比较了大脑神经元和真空电子管的运算速度，大胆暗示两者可以类比。
Von Neumann quantitatively compared the speed of brain neurons and the speed of vacuum tubes, boldly implying the two could be compared.
应用推荐