very-low frequency

简明释义

甚低频

英英释义

例句

1.Some animals can hear very-low frequency 极低频率 sounds that humans cannot.

一些动物能够听到人类无法听到的极低频率声音。

2.The audio engineer adjusted the settings to enhance the very-low frequency 极低频率 response of the speakers.

音频工程师调整设置以增强扬声器的极低频率响应。

3.Seismologists monitor very-low frequency 极低频率 waves to predict earthquakes.

地震学家监测极低频率波以预测地震。

4.The researchers studied the effects of very-low frequency 极低频率 sound waves on marine life.

研究人员研究了极低频率声波对海洋生物的影响。

5.In telecommunications, very-low frequency 极低频率 signals can travel long distances.

在电信中，极低频率信号可以传播很远的距离。

作文

In the realm of communication and technology, the term very-low frequency refers to a specific range of radio frequencies that are crucial for various applications. These frequencies typically range from 3 kHz to 30 kHz and are known for their unique properties that allow them to travel long distances and penetrate obstacles effectively. Understanding very-low frequency is essential for professionals in fields such as telecommunications, broadcasting, and even geological studies.One of the most significant uses of very-low frequency waves is in submarine communication. Because water absorbs higher frequency signals more readily, submarines rely on very-low frequency transmissions to maintain contact with their command centers while submerged. This ability to communicate underwater is vital for national security and military operations, demonstrating the importance of very-low frequency in modern defense strategies.Moreover, very-low frequency signals are also employed in navigation systems. For example, LORAN (Long Range Navigation) uses these frequencies to provide accurate positioning information over vast distances. This technology has been particularly beneficial for maritime and aviation industries, where precise navigation is critical for safety and efficiency.Additionally, very-low frequency waves are utilized in scientific research, particularly in the study of the Earth's ionosphere. Researchers can use these frequencies to probe the ionosphere's characteristics, which can affect radio wave propagation and, consequently, global communications. This research is vital for improving our understanding of atmospheric science and enhancing communication technologies.Despite their advantages, very-low frequency signals also come with challenges. The large antennas required to transmit these frequencies need considerable space and can be expensive to construct and maintain. Furthermore, the data transmission rates at very-low frequency are relatively low compared to higher frequencies, which can limit their use in applications requiring high bandwidth.In conclusion, the concept of very-low frequency plays a pivotal role in various sectors, including military communication, navigation, and scientific research. Its unique properties allow for long-distance transmission and penetration of obstacles, making it invaluable in situations where traditional communication methods may fail. As technology continues to evolve, the applications and importance of very-low frequency signals are likely to expand, highlighting the need for ongoing research and development in this fascinating field.

在通信和技术领域，术语very-low frequency指的是一个特定的无线电频率范围，这些频率对于各种应用至关重要。这些频率通常范围从3 kHz到30 kHz，以其独特的特性而闻名，能够有效地传播长距离并穿透障碍物。理解very-low frequency对于电信、广播，甚至地质研究等领域的专业人士至关重要。very-low frequency波最显著的用途之一是潜艇通信。由于水对高频信号的吸收能力更强，潜艇依赖于very-low frequency传输与指挥中心保持联系。这种在水下进行通信的能力对国家安全和军事行动至关重要，展示了very-low frequency在现代国防战略中的重要性。此外，very-low frequency信号还用于导航系统。例如，LORAN（长距离导航）利用这些频率提供准确的定位信息，覆盖广阔的距离。这项技术对海洋和航空行业尤其有益，在这些行业中，精确的导航对安全和效率至关重要。此外，very-low frequency波也被用于科学研究，特别是在研究地球电离层方面。研究人员可以利用这些频率探测电离层的特性，这会影响无线电波传播，并因此影响全球通信。这项研究对于提高我们对大气科学的理解以及增强通信技术至关重要。尽管有其优势，very-low frequency信号也面临一些挑战。传输这些频率所需的大型天线需要相当大的空间，并且建设和维护成本可能很高。此外，very-low frequency的数据传输速率相对于更高频率来说相对较低，这可能限制其在需要高带宽的应用中的使用。总之，very-low frequency概念在军事通信、导航和科学研究等各个领域发挥着关键作用。其独特的特性使得长距离传输和障碍物穿透成为可能，使其在传统通信方法可能失效的情况下变得不可或缺。随着科技的不断进步，very-low frequency信号的应用和重要性可能会扩展，突显出在这一迷人领域进行持续研究和开发的必要性。