electric discharge

简明释义

放电

英英释义

例句

1.Safety precautions are necessary to prevent electric discharge during maintenance work.

在维护工作中，有必要采取安全预防措施以防止电放电。

2.The lightning struck the tree due to an electric discharge.

由于电放电，闪电击中了树木。

3.Static electricity can cause an electric discharge when you touch a metal object.

当你触摸金属物体时，静电可能会导致电放电。

4.During the experiment, we observed an electric discharge between the two electrodes.

在实验中，我们观察到两个电极之间的电放电。

5.The electric discharge in the gas tube created a bright light.

气体管中的电放电产生了明亮的光。

作文

Electricity is an essential part of modern life, powering our homes, industries, and electronic devices. One fascinating phenomenon related to electricity is electric discharge, which can be observed in various forms such as lightning, static electricity, and the operation of electronic components. Understanding electric discharge is crucial for both scientific exploration and practical applications in everyday life.At its core, electric discharge refers to the release of electricity from one object to another. This process can occur when there is a buildup of electric charge that exceeds the insulating capacity of the material between two charged objects. For example, when you rub a balloon on your hair, electrons are transferred, causing the balloon to become negatively charged and your hair to become positively charged. When these two oppositely charged objects come into contact, a small electric discharge occurs, resulting in a spark.One of the most dramatic examples of electric discharge is lightning. During a thunderstorm, the movement of air creates friction that separates positive and negative charges within clouds. Eventually, the difference in charge becomes so great that it overcomes the resistance of the air, leading to a massive electric discharge in the form of lightning. This natural phenomenon not only illuminates the sky but also releases immense energy, which can be both beautiful and dangerous.In the field of electronics, electric discharge plays a vital role in the functioning of various devices. For instance, in cathode ray tubes (CRT), which were commonly used in older televisions and computer monitors, electric discharge is employed to create images on the screen. A stream of electrons is emitted from a cathode and directed towards a phosphorescent screen, where the electric discharge produces light and forms the images we see.Another important application of electric discharge is in gas discharge lamps, such as neon signs and fluorescent lights. In these lamps, an inert gas is ionized through electric discharge, allowing it to emit light. The colors produced depend on the type of gas used and the energy of the discharge, making them popular for decorative lighting.While electric discharge is often beneficial, it can also pose risks. For instance, static electricity can cause sparks that ignite flammable materials, leading to fires or explosions. Additionally, high-voltage electric discharge can result in serious injuries or fatalities if proper precautions are not taken. Therefore, understanding the principles behind electric discharge is essential for safety in both industrial and domestic environments.In conclusion, electric discharge is a fascinating and multifaceted concept that plays a significant role in our daily lives. From the spectacular display of lightning to the functionality of electronic devices, the principles of electric discharge are integral to both nature and technology. As we continue to explore the world of electricity, a deeper understanding of electric discharge will undoubtedly lead to new innovations and safer practices in harnessing this powerful force.

电力是现代生活中不可或缺的一部分，为我们的家庭、工业和电子设备提供动力。与电力相关的一个迷人现象是电气放电，可以在闪电、静电和电子元件的操作等各种形式中观察到。理解电气放电对于科学探索和日常生活中的实际应用至关重要。从本质上讲，电气放电指的是电力从一个物体释放到另一个物体的过程。当两个带电物体之间的绝缘材料的承载能力超过电荷积累时，这一过程可能会发生。例如，当你用气球摩擦头发时，电子被转移，导致气球带负电，头发带正电。当这两个相反带电的物体接触时，发生小的电气放电，产生火花。电气放电最戏剧性的例子之一是闪电。在雷暴期间，空气的运动产生摩擦，使云中的正负电荷分离。最终，电荷差异变得如此之大，以至于克服了空气的电阻，导致以闪电形式出现的大规模电气放电。这一自然现象不仅照亮了天空，还释放出巨大的能量，既美丽又危险。在电子学领域，电气放电在各种设备的功能中发挥着至关重要的作用。例如，在阴极射线管（CRT）中，曾广泛用于旧电视和计算机显示器中，电气放电用于在屏幕上创建图像。电子从阴极发射并定向到荧光屏上，电气放电产生光并形成我们看到的图像。电气放电的另一个重要应用是气体放电灯，如霓虹灯和荧光灯。在这些灯中，通过电气放电使惰性气体电离，使其发光。产生的颜色取决于所用气体的类型和放电的能量，这使它们在装饰照明中非常受欢迎。虽然电气放电通常是有益的，但也可能带来风险。例如，静电可能导致火花点燃易燃材料，导致火灾或爆炸。此外，高压电气放电如果没有采取适当的预防措施，可能会导致严重伤害或死亡。因此，理解电气放电背后的原理对于工业和家庭环境的安全至关重要。总之，电气放电是一个迷人且多方面的概念，在我们的日常生活中发挥着重要作用。从壮观的闪电展示到电子设备的功能，电气放电的原理对于自然和技术都是不可或缺的。随着我们继续探索电力的世界，更深入地理解电气放电无疑将导致新的创新和更安全的利用这一强大力量的实践。