查询词典 electron tube

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。

The television receiver contain a very special sort of electron tube, called a "cathode-ray" tube.

电视接收机有一个非常特殊的电子管，称为阴极射线管。

Main technical specification and inspection condition: Main sound track output≥10W, Input resistance≥47KΩ, Frequency20Hz～20KHz, Load resistance8Ω, Total wave distortion≤1%, Ultra bass channel output≥20W, Frequency≤100Hz,uses the transistor and giving up field effect tube and electron tube and reduction transistor and so on carries on the discussion.

其主要技术指标及考核条件为：主声道的输出功率≥10W，输入电阻≥47KΩ，频率响应20Hz～20KHz，负载电阻8Ω，总波失真≤1%，超低音通道输出功率≥20W，频率响应≤100Hz，，同时采用全晶体管的设计。

A positively charged electrode, as of an electrolytic cell, a storage battery, or an electron tube.

质子重子族群中一种稳定的带正电的中子核，质量为电子的1，836倍

A positively charged electrode, as of an electrolytic cell, a storage battery, or an electron tube .

多源发生说；多细胞繁殖从一个以上的祖先或初始细胞衍生成为一个物种或一种类型

The second electron tube is out of order.

第二个电子管坏了。

His most famous invention was the vacuum tube, or electron tube.

他最著名的发明是真空管或电子管。

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。

The residual gas pressure in an electron tube can be measured when the tube itself is operated as a hot cathode ionization gauge.Usually,its sensitivity K is determined by the method of gauge calibration.In this paper,author try to determine the sensitivity K by ca- lculation.The formulae for this purpose have be found out,and are used for both plate and cylindrical electrode systems.

把电子管接成热阴极电离计的工作形式，用来测量管内残气压强时，其灵敏度如何计算的问题在本文中作了讨论，给出了平板形电极系统和圆柱形电极系统的灵敏度解析式，对式中各量的计算作了详细介绍；并指出四极管中电子在电离区的平均渡越次数的表示式与三极管中的完全不同。

Electron tube, thermionic tube , thermionic vacuum tube , thermionic valve , tube , vacuum tube

联机查询中。。。联机词库无快速预览，请回车确定查询电真空器件，电子管

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％。