discharge tube

简明释义

放电管

英英释义

例句

1.The scientist connected the gas source to the discharge tube to observe the plasma formation.

科学家将气体源连接到放电管以观察等离子体的形成。

2.The discharge tube is essential for studying the behavior of gases under low pressure.

对于研究低压下气体的行为，放电管是必不可少的。

3.During the demonstration, the teacher explained how the discharge tube can create different colors of light.

在演示过程中，老师解释了如何通过放电管产生不同颜色的光。

4.In the experiment, the discharge tube emitted a bright light when high voltage was applied.

在实验中，当施加高电压时，放电管发出了明亮的光。

5.The discharge tube used in the lab was made of glass to withstand high temperatures.

实验室使用的放电管是用玻璃制成的，以耐受高温。

作文

The study of physics often introduces students to various components that play crucial roles in understanding the principles of electricity and magnetism. One such component is the discharge tube, which serves as a fascinating example of how gases can conduct electricity under certain conditions. A discharge tube is a sealed glass tube that contains a low-pressure gas, and when a high voltage is applied across its electrodes, it allows the gas to become ionized, leading to the flow of electric current. This phenomenon is not only intriguing but also has practical applications in various fields, including lighting and telecommunications.In essence, the discharge tube operates on the principle that when sufficient energy is provided to the gas molecules, they can lose electrons and become positively charged ions. This process creates a path for electrons to flow, resulting in the emission of light, which can be seen in neon signs and fluorescent lamps. The colors emitted by different types of gases make the discharge tube an exciting topic for exploration, as each gas produces a unique hue when excited by electricity.Moreover, the discharge tube is not limited to practical applications; it also plays a significant role in scientific research. For instance, when studying the properties of gases and their interactions with electric fields, scientists often utilize discharge tubes to observe phenomena such as plasma formation. Plasma, which is sometimes referred to as the fourth state of matter, is created when enough energy is supplied to ionize a gas completely. Understanding plasma behavior is essential for advancements in fields like astrophysics and fusion energy research.Historically, the discharge tube has contributed to many discoveries in the realm of atomic physics. Notably, J.J. Thomson's experiments with discharge tubes in the late 19th century led to the discovery of the electron. By applying high voltage to a discharge tube, Thomson was able to observe cathode rays, which were later identified as streams of electrons. This groundbreaking work paved the way for modern atomic theory and our understanding of subatomic particles.In conclusion, the discharge tube is more than just a simple glass apparatus; it is a gateway to understanding complex physical concepts and a tool for scientific discovery. Its ability to demonstrate the behavior of gases under electrical influence and its historical significance in the field of physics make it an essential subject of study. Whether in the classroom or in research laboratories, the discharge tube continues to inspire curiosity and innovation, reminding us of the intricate connections between electricity, matter, and the universe at large.

物理学的研究常常向学生介绍各种组件，这些组件在理解电和磁原理方面发挥着至关重要的作用。其中一个组件是放电管，它作为一个迷人的例子，展示了气体在特定条件下如何导电。放电管是一种密封的玻璃管，内部含有低压气体，当在其电极之间施加高电压时，它允许气体被电离，从而导致电流的流动。这种现象不仅引人入胜，而且在照明和电信等多个领域具有实际应用。从本质上讲，放电管的工作原理是，当向气体分子提供足够的能量时，它们可以失去电子并成为带正电的离子。这个过程为电子流动创造了一条路径，从而导致光的发射，这在霓虹灯和荧光灯中可以看到。不同类型气体发出的颜色使得放电管成为一个激动人心的探索主题，因为每种气体在受到电激励时产生独特的色调。此外，放电管不仅限于实际应用；它在科学研究中也发挥着重要作用。例如，在研究气体的性质及其与电场的相互作用时，科学家们常常利用放电管观察等离子体的形成。等离子体有时被称为物质的第四态，是当向气体提供足够能量以完全电离时产生的。理解等离子体的行为对于天体物理学和聚变能源研究等领域的进步至关重要。历史上，放电管对原子物理学领域的许多发现做出了贡献。值得注意的是，J.J. 汤姆森在19世纪末对放电管的实验导致了电子的发现。通过对放电管施加高电压，汤姆森能够观察到阴极射线，这些后来被确定为电子流。这项开创性的工作为现代原子理论及我们对亚原子粒子的理解铺平了道路。总之，放电管不仅仅是一个简单的玻璃器具；它是理解复杂物理概念的门户，也是科学发现的工具。它展示气体在电力影响下的行为的能力以及在物理学领域的历史意义，使其成为一个重要的研究主题。无论是在课堂上还是在研究实验室，放电管继续激发好奇心和创新，提醒我们电、物质和宇宙之间错综复杂的联系。