electron valve

简明释义

电子管

英英释义

例句

1.The electron valve 电子阀 technology paved the way for modern electronics.

电子阀 electron valve 技术为现代电子学铺平了道路。

2.The efficiency of the electron valve 电子阀 can greatly affect the performance of a circuit.

电子阀 electron valve 的效率可以极大地影响电路的性能。

3.The electron valve 电子阀 is essential in controlling the flow of electrons in vacuum tubes.

在真空管中，电子阀 electron valve 对控制电子流动至关重要。

4.In a cathode ray tube, the electron valve 电子阀 helps direct electron beams to create images.

在阴极射线管中，电子阀 electron valve 帮助引导电子束以创建图像。

5.In many old radios, the electron valve 电子阀 was used to amplify audio signals.

在许多老式收音机中，电子阀 electron valve 用于放大音频信号。

作文

The invention of the electron valve (电子阀) marked a significant milestone in the field of electronics and communication technology. This device, also known as a vacuum tube, played a crucial role in the development of early electronic circuits. The electron valve was primarily used to control the flow of electric current in a circuit, allowing for amplification and switching applications. Its ability to manage electrical signals paved the way for innovations in radio broadcasting, television, and early computers.In essence, an electron valve consists of a sealed glass or metal envelope containing a vacuum or low-pressure gas. Inside this envelope, there are electrodes: a cathode, which emits electrons when heated, and an anode, which collects these electrons. When a voltage is applied between these two electrodes, the electron valve allows current to flow, thus enabling various functionalities within electronic devices. This fundamental principle has been instrumental in shaping modern electronics.One of the most notable applications of the electron valve was in radio transmitters and receivers. Before the advent of solid-state devices like transistors, radio technology relied heavily on these tubes. The ability of the electron valve to amplify weak radio signals made it possible for people to enjoy music and news broadcasts from afar. As a result, it revolutionized communication, making it more accessible to the general public.Moreover, the electron valve found its way into the world of computing. The early computers, such as ENIAC, utilized thousands of these tubes to perform calculations and process data. Although bulky and power-hungry, these machines laid the groundwork for the digital age. The transition from electron valves to transistors in the 1950s marked a turning point in computer technology, leading to smaller, faster, and more efficient devices.Despite being largely replaced by transistors and integrated circuits in most applications, the legacy of the electron valve continues to influence modern technology. Audiophiles, for example, often seek out vacuum tube amplifiers for their warm sound quality, which is attributed to the characteristics of the electron valve. Additionally, some specialized applications, such as high-power RF transmitters and certain types of scientific equipment, still utilize these tubes due to their unique properties.In conclusion, the electron valve (电子阀) represents a pivotal advancement in the history of electronics. Its ability to control and amplify electrical signals laid the foundation for many technologies we take for granted today. While the electron valve has largely been supplanted by newer technologies, its impact on the fields of communication and computing remains undeniable. Understanding the principles behind the electron valve not only helps us appreciate the evolution of technology but also highlights the ingenuity that drives innovation in our ever-evolving world.