vacuum tube

简明释义

真空管

英英释义

例句

1.Many vintage audio enthusiasts prefer vacuum tubes over solid-state devices.

许多复古音频爱好者更喜欢真空管而不是固态设备。

2.The vacuum tube technology was crucial in the development of early computers.

在早期计算机的发展中，真空管技术至关重要。

3.The old radio uses a vacuum tube for amplification.

这台旧收音机使用真空管进行放大。

4.You can find vacuum tubes in some high-end guitar amplifiers.

在一些高端吉他放大器中，你可以找到真空管。

5.The scientist explained how a vacuum tube works to his students.

科学家向他的学生解释了真空管的工作原理。

作文

The invention of the vacuum tube (真空管) marked a pivotal moment in the history of electronics and telecommunications. Before the advent of the vacuum tube, electronic devices relied heavily on mechanical components, which were often bulky, inefficient, and limited in their capabilities. The vacuum tube revolutionized this field by providing a means to amplify electrical signals, leading to the development of radios, televisions, and early computers.A vacuum tube consists of a sealed glass or metal envelope from which air has been removed, creating a vacuum. Inside this envelope, there are typically at least two electrodes: a cathode and an anode. The cathode is heated, causing it to emit electrons, which then travel through the vacuum to the anode. This flow of electrons can be controlled and manipulated, allowing the vacuum tube to amplify signals or switch them on and off.One of the most significant applications of the vacuum tube was in radio technology. Early radios used vacuum tubes to amplify weak radio signals, making it possible for people to listen to broadcasts from great distances. This innovation not only transformed entertainment but also had profound implications for communication during the 20th century. The ability to transmit information wirelessly changed how society interacted, paving the way for modern media.In addition to radios, vacuum tubes played a crucial role in the development of television. The first televisions used vacuum tubes to process and amplify video signals, allowing images to be displayed on screens. This technology was a precursor to the more advanced solid-state devices we use today, but it laid the groundwork for the visual entertainment industry.Furthermore, vacuum tubes were essential in the early days of computing. The first electronic computers, such as ENIAC, utilized thousands of vacuum tubes to perform calculations. These machines were enormous and consumed a vast amount of power, yet they represented a monumental leap forward in processing capability. The computational speed and efficiency brought about by vacuum tubes made it possible to solve complex problems that were previously unmanageable.Despite their advantages, vacuum tubes have largely been replaced by transistors in modern electronics. Transistors are smaller, more reliable, and consume less power, making them ideal for the compact devices we rely on today. However, vacuum tubes still find niche applications in certain areas, such as high-power radio frequency transmitters and some audio equipment, where their unique characteristics provide distinct sound qualities.In conclusion, the vacuum tube (真空管) was a groundbreaking invention that transformed the landscape of electronics and communication. Its ability to amplify and switch electrical signals enabled the creation of radios, televisions, and early computers, all of which have shaped modern society. While technology has evolved and vacuum tubes have been largely supplanted by transistors, their historical significance and impact on our world cannot be overstated. Understanding the role of the vacuum tube is essential for appreciating the advancements in technology that we enjoy today.

真空管的发明标志着电子和电信历史上的一个关键时刻。在真空管出现之前，电子设备严重依赖机械部件，这些部件通常笨重、低效且功能有限。真空管通过提供放大电信号的方法，彻底改变了这一领域，促成了收音机、电视和早期计算机的发展。真空管由一个密封的玻璃或金属外壳组成，内部的空气被抽走，形成真空。在这个外壳内，通常至少有两个电极：阴极和阳极。阴极被加热，导致其发射电子，这些电子然后通过真空移动到阳极。这种电子流可以被控制和操纵，使得真空管能够放大信号或开关信号。真空管最重要的应用之一是在无线电技术中。早期的无线电使用真空管来放大微弱的无线电信号，使人们能够收听到来自远方的广播。这一创新不仅改变了娱乐方式，还对20世纪的通信产生了深远的影响。无线传输信息的能力改变了社会的互动方式，为现代媒体铺平了道路。除了无线电，真空管在电视的发展中也发挥了重要作用。第一代电视使用真空管来处理和放大视频信号，从而使图像能够显示在屏幕上。这项技术是我们今天使用的更先进的固态设备的前身，但为视觉娱乐产业奠定了基础。此外，真空管在计算机早期发展中至关重要。早期的电子计算机，如ENIAC，利用数千个真空管进行计算。这些机器体积庞大，消耗大量电力，但它们代表了处理能力的巨大飞跃。真空管带来的计算速度和效率使得解决以前无法处理的复杂问题成为可能。尽管具有诸多优点，真空管在现代电子产品中已基本被晶体管取代。晶体管体积更小、更可靠，并且消耗更少的电力，使其成为我们今天依赖的紧凑型设备的理想选择。然而，真空管仍然在某些领域找到小众应用，例如高功率射频发射器和某些音频设备，在这些领域，它们独特的特性提供了独特的音质。总之，真空管（真空管）是一项突破性的发明，改变了电子和通信的格局。它放大和切换电信号的能力使得收音机、电视和早期计算机的创造成为可能，而这些都塑造了现代社会。尽管技术已经发展，真空管在很大程度上被晶体管取代，但它们在历史上的重要性和对我们世界的影响不容小觑。理解真空管的作用对于欣赏我们今天享受的技术进步至关重要。