electric whistle

简明释义

电笛

英英释义

例句

1.The referee used an electric whistle to signal the start of the game.

裁判用电哨发出信号，比赛开始了。

2.The lifeguard carried an electric whistle to alert swimmers in case of danger.

救生员携带了一个电哨以便在危险时警告游泳者。

3.In the dog training class, the instructor used an electric whistle to communicate with the dogs.

在狗训练班上，教练使用电哨与狗进行沟通。

4.During training, the coach blew the electric whistle to get everyone's attention.

在训练期间，教练吹响了电哨以引起大家的注意。

5.An electric whistle is often louder than a traditional whistle, making it ideal for large crowds.

电哨通常比传统哨子声音更大，非常适合人多的场合。

作文

The concept of an electric whistle has become increasingly relevant in various fields, from sports to safety measures. An electric whistle is a device that produces a sound using electrical energy, often replacing traditional whistles made of metal or plastic. The sound produced by an electric whistle is typically louder and more consistent, making it an ideal choice for referees in sports events or for signaling in emergency situations. In sports, the use of an electric whistle can greatly enhance communication on the field. Referees and coaches need to convey messages quickly and clearly, especially during high-stakes games. The sharp and piercing sound of an electric whistle cuts through the noise of the crowd, ensuring that players hear the call immediately. This not only helps in maintaining order during the game but also enhances the overall experience for both players and spectators.Moreover, the electric whistle has applications beyond the sports arena. In safety protocols, such as those used by lifeguards or security personnel, an electric whistle serves as a crucial tool for alerting others to potential dangers. Its loud sound can be heard over long distances, making it effective for signaling in emergencies. For instance, if a lifeguard observes someone in distress in the water, blowing an electric whistle can quickly attract attention and mobilize assistance. The technology behind an electric whistle is fascinating. Unlike traditional whistles that rely on air being forced through a small opening, an electric whistle uses electronic components to generate sound waves. This can involve speakers or piezoelectric elements that vibrate to produce sound. As a result, the volume and tone of the sound can be controlled more precisely, allowing for variations that can suit different situations. Another advantage of the electric whistle is its durability and reliability. Traditional whistles can get damaged or lost easily, especially in outdoor environments. However, an electric whistle is often designed to withstand harsher conditions, making it a practical choice for outdoor enthusiasts, rescue teams, and professionals who work in challenging environments. Additionally, many models are equipped with features such as waterproofing and built-in lights, further enhancing their utility. Despite its many advantages, the electric whistle is not without its drawbacks. For one, it requires batteries or a power source, which can be a limitation in remote areas where access to electricity is limited. Furthermore, some people may prefer the simplicity and tradition of a standard whistle, feeling that it carries a certain charm and authenticity that modern devices lack. In conclusion, the electric whistle represents a significant advancement in signaling devices. Its loud and clear sound makes it an essential tool in both sports and safety contexts. As technology continues to evolve, we can expect to see further innovations in the design and functionality of the electric whistle, making it an even more valuable asset for those who need to communicate effectively in various situations. Whether on the field or in an emergency, the electric whistle undoubtedly plays a crucial role in ensuring safety and organization.

“电哨”这一概念在体育和安全措施等多个领域变得越来越相关。“电哨”是一种使用电能发出声音的设备，常常取代传统的金属或塑料哨子。“电哨”发出的声音通常更大且更一致，使其成为体育赛事中裁判或紧急情况下发信号的理想选择。在体育中，使用“电哨”可以极大地增强场上的沟通。裁判和教练需要快速清晰地传达信息，尤其是在关键比赛中。“电哨”的尖锐刺耳的声音能够穿透人群的噪音，确保球员立即听到号召。这不仅有助于维持比赛秩序，还提升了球员和观众的整体体验。此外，“电哨”在体育场之外也有应用。在安全协议中，例如救生员或保安人员使用的， “电哨”是警告他人潜在危险的重要工具。它的响亮声音可以在很长的距离内被听到，使其在紧急情况下有效发出信号。例如，如果救生员观察到有人在水中遇险，吹响“电哨”可以迅速吸引注意并动员援助。“电哨”的技术原理非常有趣。与依靠空气通过小开口的传统哨子不同，“电哨”利用电子元件生成声波。这可能涉及扬声器或压电元件，通过振动产生声音。因此，声音的音量和音调可以更精确地控制，从而允许适应不同情况的变化。“电哨”的另一个优点是其耐用性和可靠性。传统哨子容易损坏或丢失，尤其是在户外环境中。然而，“电哨”通常设计为能够承受更恶劣的条件，使其成为户外爱好者、救援队和在挑战性环境中工作的专业人士的实用选择。此外，许多型号还配备防水和内置灯光等功能，进一步增强了其实用性。尽管有许多优点，“电哨”也并非没有缺点。首先，它需要电池或电源，这在远离电源的偏远地区可能是一个限制。此外，有些人可能更喜欢标准哨子的简单性和传统感，觉得它带有某种魅力和真实性，而现代设备则缺乏这些。总之，“电哨”代表了信号设备的重要进步。其响亮清晰的声音使其成为体育和安全环境中不可或缺的工具。随着技术的不断发展，我们可以期待看到“电哨”的设计和功能进一步创新，使其在各种情况下更具价值。无论是在场上还是在紧急情况下，“电哨”无疑在确保安全和组织方面发挥着至关重要的作用。