电子管

Dr. Lee de Forest reads a paper before an AIEE meeting on the Audion, first of the vacuum tubes that would make long distance radiotelephony possible.

在一次AIEE会议之前，李。德福雷斯特博士阅读了一篇关于三极管的论文。电子管的首次使用将使长途无线电话变为可能。

The principle is using thefast breakover of avalanche transistor drive the electron tube. The full time of 4200Vvoltage is about 20ns. The circuit can normally work under 100kHz frequencies.Design an extra fast Q-switch circuit by series arrangement of avalanche transistor.

本论文主要做了以下几方面工作：1、推导了重复率激光基本参数(脉冲能量、脉冲宽度和峰值功率)与周期的关系，并且分析了重复率激光系统运转的稳定性。2、设计了雪崩管-电子管退压电路，由雪崩管驱动电子管开关，4200V高压退压沿20ns左右，能够在100kHz频率下工作。

An electron tube is generally used for amplification, and vacuum tube is another +name for this device.

电子管通常用来放大，而真空管则是电子管的另一名称。

In the high-frequency full-power, long tube output should pay special attention to the cooling system is normal, because the full power output of the tube heating than half-power when the high heat four times, when the cooling system abnormalities and easily damaged when the tube

在高频全功率、长时间输出时应特别注意电子管的冷却系统是否正常，因为在全功率输出时的电子管发热量比半功率时的发热量高四倍，当冷却系统异常时及易损坏电子管

The use of a phase-splitting stage harks back to valve amplifiers, where it was inescapable as a complementary valve technology has so far eluded us.

分相器的使用就要提到电子管放大器，它当然就是一项互补电子管技术，但我们确常常忽略它。

In the vacuum tube radio, a lot of space is taken up by these vacuum tubes and a large quantity of beat is produced so that part of the electric ''.

电子管收音机中的很大空间就是被这些电子管占领着的，它们产生大量的热，因此部分电能被浪费掉了。

In the vacuum tube radio, a lot of space is taken up by these vacuum tubes and a large quantity of beat is produced so that part of the electric power is wasted.

电子管收音机中的很大空间就是被这些电子管占领着的，它们产生大量的热，因此部分电能被浪费掉了。

A three tube radio didn't generate all that much heat, but group 18,000 into a computer and the air conditioning system becomes a significant problem.

三只电子管的收音机不会产生很多热量，但是，把1万8000只电子管构成计算机，空调系统就会成为一个严重的问题。

Out of the electronic tube has come one particularly tough little war baby.

电子管：电子管也叫&真空管&，是一种在气密性封闭容器中产生电流传导，利用电场对真空中的电子流的作用以获得信号放大或振荡的电子器件。

Fill lumen – Feed continues to enter the shell side via lower feed manifold, however, top backwash discharge valve is closed and filtrate exhaust valve is opene

装满流明–喂食继续通过较低的喂食歧管进入外壳边，然而，最高的冲洗卸下电子管被关闭并且过滤废物电子管被打开。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。