short-wave receiver

简明释义

短波接收机

英英释义

例句

1.During the storm, we relied on our short-wave receiver for emergency updates.

在风暴期间，我们依靠我们的短波接收器获取紧急更新。

2.I bought a new short-wave receiver to listen to international broadcasts.

我买了一个新的短波接收器来收听国际广播。

3.The short-wave receiver can tune into various frequencies for diverse programming.

这个短波接收器可以调谐到不同的频率，以便收听多样化的节目。

4.The short-wave receiver allows me to pick up signals from faraway countries.

这个短波接收器让我能够接收到来自遥远国家的信号。

5.My grandfather used a short-wave receiver to communicate with friends overseas.

我祖父使用短波接收器与海外的朋友进行交流。

作文

In today's world, where technology evolves at a rapid pace, the importance of communication cannot be overstated. One fascinating aspect of communication technology is the use of radios, particularly the short-wave receiver. A short-wave receiver is a device that can pick up radio signals transmitted over long distances using shortwave frequencies. These frequencies typically range from 3 to 30 MHz, allowing signals to travel thousands of miles by bouncing off the ionosphere. This capability makes short-wave receivers an essential tool for global communication, especially in remote areas where other forms of communication may not be available.The history of the short-wave receiver dates back to the early 20th century when radio technology was first developed. Pioneers like Guglielmo Marconi demonstrated the potential of wireless communication, laying the groundwork for future advancements. As technology improved, short-wave receivers became more accessible to the general public, allowing amateur radio enthusiasts to connect with people across the globe.One of the most significant advantages of using a short-wave receiver is its ability to receive broadcasts from international stations. This feature allows users to listen to news, music, and cultural programs from different countries, fostering a greater understanding of global perspectives. For instance, during times of political unrest or natural disasters, short-wave receivers can provide crucial information when other media sources may be unavailable.Moreover, short-wave receivers are often used by travelers and expatriates who wish to stay connected to their home countries. By tuning into specific frequencies, they can access familiar radio stations, making them feel less isolated while living abroad. This connection to home can be comforting and serves as a reminder of one's roots, even when far away.In addition to personal use, short-wave receivers play a vital role in emergency communication. In situations where traditional communication infrastructure may fail, such as during natural disasters or large-scale emergencies, these devices can help maintain contact between affected individuals and rescue teams. The ability to receive updates and instructions from authorities can be lifesaving in critical moments.Despite the rise of digital communication technologies, short-wave receivers remain relevant today. Many enthusiasts appreciate the simplicity and reliability of analog radio, which does not rely on internet connectivity or electricity in the same way that modern devices do. Furthermore, the hobby of shortwave listening has evolved, with communities forming around the world to share experiences and tips on receiving distant broadcasts.In conclusion, the short-wave receiver is a remarkable invention that has stood the test of time. Its ability to connect people across vast distances, provide valuable information during emergencies, and foster a sense of community among enthusiasts makes it an invaluable tool in our increasingly interconnected world. As we continue to navigate the complexities of communication technology, the short-wave receiver reminds us of the power of radio waves and the importance of staying connected, no matter where we are in the world.

在当今这个技术快速发展的世界中，沟通的重要性不容小觑。通信技术的一个迷人方面是无线电的使用，特别是短波接收器。短波接收器是一种能够接收通过短波频率传输的长距离无线电信号的设备。这些频率通常在3到30 MHz之间，允许信号通过反弹离子层传播数千英里。这一能力使得短波接收器成为全球通信的重要工具，特别是在其他通信方式可能无法使用的偏远地区。短波接收器的历史可以追溯到20世纪初，当时无线电技术首次被开发。像古列尔莫·马可尼这样的先驱者展示了无线通信的潜力，为未来的进步奠定了基础。随着技术的进步，短波接收器变得更加普及，使业余无线电爱好者能够与全球各地的人们联系。使用短波接收器的一个显著优势是其能够接收国际电台的广播。这一特性使用户能够收听来自不同国家的新闻、音乐和文化节目，促进对全球视角的更深入理解。例如，在政治动荡或自然灾害期间，短波接收器可以提供重要信息，而其他媒体源可能无法提供。此外，短波接收器通常被旅行者和侨民用来保持与祖国的联系。通过调谐特定频率，他们可以访问熟悉的广播电台，即使身在异国他乡，也能感到不那么孤立。这种与家乡的联系可以带来安慰，并在远离时提醒人们自己的根。除了个人使用，短波接收器在紧急通信中也发挥着至关重要的作用。在传统通信基础设施可能失效的情况下，例如在自然灾害或大规模紧急情况下，这些设备可以帮助维持受影响人员与救援队之间的联系。接收来自当局的更新和指示的能力在关键时刻可能挽救生命。尽管数字通信技术日益兴起，短波接收器今天仍然具有相关性。许多爱好者欣赏模拟无线电的简单性和可靠性，它不像现代设备那样依赖于互联网连接或电力。此外，短波收听的爱好已经演变，全球范围内形成了社区，分享经验和接收遥远广播的技巧。总之，短波接收器是一项了不起的发明，经受住了时间的考验。它能够跨越广阔距离连接人们，在紧急情况下提供有价值的信息，以及在爱好者中培养社区意识，使其在我们日益互联的世界中成为一项宝贵的工具。当我们继续应对通信技术的复杂性时，短波接收器提醒我们无线电波的力量以及保持联系的重要性，无论我们身在何处。