marine frequency

简明释义

海上无线电通信频率

英英释义

例句

1.The marine frequency 海洋频率 is crucial for navigation and safety at sea.

在海上，海洋频率 marine frequency 对于导航和安全至关重要。

2.Before setting sail, ensure your radio is set to the correct marine frequency 海洋频率.

在起航之前，确保你的无线电调到正确的海洋频率 marine frequency。

3.The ship's radio is tuned to the marine frequency 海洋频率 for communication with other vessels.

船只的无线电调至海洋频率 marine frequency，以便与其他船只进行通信。

4.The coast guard monitors the marine frequency 海洋频率 for any distress signals from boats.

海岸警卫队监控海洋频率 marine frequency，以获取来自船只的求救信号。

5.During the safety drill, we practiced using the marine frequency 海洋频率 to call for help.

在安全演习中，我们练习使用海洋频率 marine frequency 请求救援。

作文

The term marine frequency refers to the specific range of radio frequencies that are used for communication in maritime environments. This is crucial for ensuring safety and effective communication among vessels at sea. The marine frequency bands are allocated by international agreements and are monitored to prevent interference between different users. In essence, these frequencies allow ships to communicate with each other, as well as with coastal stations and rescue services, which is vital for navigation and emergency situations.Understanding marine frequency is essential for anyone involved in maritime activities, whether they are professional sailors, fishermen, or recreational boaters. For example, the VHF (Very High Frequency) band, which ranges from 156 to 174 MHz, is commonly used for ship-to-ship and ship-to-shore communications. This frequency band is known for its reliability and relatively short range, making it ideal for local communications where immediate contact is necessary.In addition to VHF, there are also HF (High Frequency) bands that can be used for long-distance communications, especially when vessels are far from shore. These frequencies can reflect off the ionosphere, allowing signals to travel over great distances, which is particularly useful for ocean-going vessels that may not have access to land-based communication systems.The importance of marine frequency cannot be overstated, especially in emergency situations. For instance, if a vessel is in distress, it can use specific emergency frequencies to send out a distress signal. The international distress frequency of 156.8 MHz is recognized worldwide, and any vessel hearing a distress call is obligated to respond if able. This cooperative spirit is a fundamental aspect of maritime safety.Moreover, understanding the regulations surrounding marine frequency usage is vital. The International Telecommunication Union (ITU) and various national authorities establish rules that govern who can transmit on these frequencies and under what circumstances. Unauthorized use of marine frequencies can lead to dangerous situations, such as interference with distress signals or navigational communications.With advancements in technology, the landscape of marine frequency communication is evolving. The introduction of satellite communication systems has expanded the capabilities of vessels, allowing for more reliable and widespread communication options. However, traditional marine frequencies remain essential, particularly for immediate local communications where satellite signals may not be reliable.In conclusion, the concept of marine frequency encompasses a critical aspect of maritime operations, providing the backbone for communication between vessels and shore stations. Whether for routine navigation or emergency situations, understanding and effectively utilizing these frequencies is paramount for ensuring safety at sea. As technology continues to advance, it will be interesting to see how marine frequency communication adapts and evolves to meet the needs of modern maritime activities.

术语marine frequency指的是用于海洋环境中通信的特定无线电频率范围。这对于确保海上船只之间的安全和有效沟通至关重要。marine frequency频段由国际协议分配，并受到监控，以防止不同用户之间的干扰。从本质上讲，这些频率使船只能够相互通信，以及与沿海站和救援服务进行联系，这对于导航和应急情况至关重要。理解marine frequency对任何参与海事活动的人来说都是必不可少的，无论他们是专业水手、渔民还是休闲船员。例如，VHF（超高频）频段，从156到174 MHz，通常用于船对船和船对岸的通信。这个频率带以其可靠性和相对短的范围而闻名，非常适合需要立即联系的地方通信。除了VHF之外，还有HF（高频）频段可用于远程通信，特别是在船只远离岸边时。这些频率可以反射到电离层，使信号能够在很大距离上传播，这对于可能无法访问陆基通信系统的远洋船只尤其有用。marine frequency的重要性不容小觑，特别是在紧急情况下。例如，如果一艘船遇险，可以使用特定的紧急频率发出求救信号。156.8 MHz的国际求救频率在全球范围内得到认可，任何听到求救呼叫的船只如果能够响应都有义务这样做。这种合作精神是海上安全的基本方面。此外，了解关于marine frequency使用的法规至关重要。国际电信联盟（ITU）和各国相关机构建立了规则，规定谁可以在这些频率上发射以及在什么情况下。未经授权使用海洋频率可能导致危险情况，例如干扰求救信号或导航通信。随着技术的进步，marine frequency通信的格局正在演变。卫星通信系统的引入扩大了船只的能力，使更可靠和广泛的通信选项成为可能。然而，传统的海洋频率仍然至关重要，特别是在卫星信号可能不可靠的情况下，进行即时的地方通信。总之，marine frequency的概念涵盖了海事操作的关键方面，为船只与岸站之间的通信提供了基础。无论是例行导航还是紧急情况，理解和有效利用这些频率对确保海上安全至关重要。随着技术的不断进步，观察marine frequency通信如何适应和发展以满足现代海事活动的需求将是非常有趣的。