travelling wave

简明释义

行波

英英释义

例句

1.Seismic waves are a type of travelling wave that can provide information about the Earth's interior.

地震波是一种travelling wave（行波），可以提供关于地球内部的信息。

2.In music, sound waves are examples of travelling waves that propagate through air.

在音乐中，声音波是通过空气传播的travelling waves（行波）的例子。

3.In telecommunications, signals are often transmitted as a travelling wave to carry information over long distances.

在电信中，信号通常作为travelling wave（行波）传输，以便在长距离上传递信息。

4.When you drop a stone into a pond, it creates a travelling wave that moves outward from the point of impact.

当你把石头扔进池塘时，它会产生一个从冲击点向外传播的travelling wave（行波）。

5.The concept of a travelling wave is fundamental in physics, describing how energy moves through a medium.

在物理学中，travelling wave（行波）的概念是基础，描述了能量如何通过介质传播。

作文

In the study of physics, the concept of a travelling wave is fundamental to understanding how energy and information propagate through various mediums. A travelling wave refers to a wave that moves through space and time, carrying energy from one location to another without the permanent displacement of the medium itself. This phenomenon can be observed in various contexts, such as sound waves traveling through air, light waves moving through space, or water waves propagating across the surface of the ocean. To better illustrate the significance of a travelling wave, let's consider sound waves. When a person speaks, their vocal cords vibrate, creating pressure variations in the surrounding air. These pressure variations travel outward as a travelling wave, allowing us to hear the sound even if we are some distance away from the speaker. The air itself does not travel with the wave; rather, it is the energy of the wave that moves through the air, enabling communication over long distances. Similarly, light waves are another example of travelling waves. When sunlight reaches the Earth, it travels through the vacuum of space at an incredible speed. This travelling wave carries energy that sustains life on our planet, providing warmth and enabling photosynthesis in plants. The ability of light to travel vast distances is crucial for our understanding of the universe, as it allows astronomers to observe distant stars and galaxies. In addition to sound and light, water waves also demonstrate the characteristics of a travelling wave. When a stone is thrown into a pond, it creates ripples that spread outward in circular patterns. These ripples are a visual representation of a travelling wave, where the energy from the initial disturbance moves through the water while the water molecules themselves only oscillate in place. This illustrates the principle that while the wave travels, the medium remains relatively undisturbed. The mathematical description of a travelling wave often involves sinusoidal functions, which represent the wave's amplitude, wavelength, frequency, and speed. Understanding these properties is essential for predicting how waves will behave in different situations. For instance, knowing the speed of a travelling wave allows scientists to calculate how long it will take for the wave to reach a certain point, which is vital in fields such as telecommunications and seismology. In conclusion, the concept of a travelling wave is integral to many areas of science and technology. By studying how travelling waves function, we gain insights into the behavior of sound, light, and other forms of energy transfer. This understanding not only enhances our knowledge of the natural world but also drives innovations that impact our daily lives. Whether it's through improving communication systems or advancing medical technologies, the study of travelling waves continues to play a crucial role in shaping our understanding of the universe and enhancing our quality of life.

在物理学的研究中，行波的概念是理解能量和信息如何通过各种介质传播的基础。行波是指一种波动，它在时空中移动，将能量从一个位置传递到另一个位置，而不对介质本身造成永久性位移。这种现象可以在多种上下文中观察到，例如声波在空气中传播、光波在空间中移动或水波在海洋表面传播。为了更好地说明行波的重要性，我们来考虑声波。当一个人说话时，他们的声带振动，在周围的空气中产生压力变化。这些压力变化作为行波向外传播，使我们即使距离说话者有一定距离也能听到声音。空气本身并不会随波动一起移动；而是波动的能量通过空气移动，从而使得远距离沟通成为可能。同样，光波也是行波的另一个例子。当阳光到达地球时，它以惊人的速度穿过太空的真空。这种行波携带着能量，维持着我们星球上的生命，提供温暖并使植物进行光合作用。光能够在浩瀚的距离上旅行，对于我们理解宇宙至关重要，因为它使天文学家能够观察遥远的星星和星系。除了声波和光波，水波也展示了行波的特征。当一块石头被扔进池塘时，它会产生向外扩散的涟漪。这些涟漪是行波的可视表现，其中来自初始扰动的能量通过水传播，而水分子本身仅在原地振荡。这说明了一个原则：虽然波动在传播，但介质仍然相对未受到干扰。行波的数学描述通常涉及正弦函数，这些函数表示波的振幅、波长、频率和速度。理解这些属性对于预测波在不同情况下的行为至关重要。例如，知道行波的速度可以让科学家计算出波到达某一点所需的时间，这在电信和地震学等领域是至关重要的。总之，行波的概念与许多科学和技术领域密切相关。通过研究行波的功能，我们获得了关于声波、光波和其他形式的能量转移的深入见解。这种理解不仅增强了我们对自然世界的认识，还推动了影响我们日常生活的创新。无论是改善通信系统还是推进医疗技术，行波的研究继续在塑造我们对宇宙的理解和提高我们的生活质量方面发挥着关键作用。