active sonar

简明释义

1. 有源声纳; 2. 主动声纳; 3. 主动声呐;

英英释义

例句

1.In naval exercises, active sonar is crucial for locating enemy submarines.

在海军演习中，主动声纳对定位敌方潜艇至关重要。

2.The use of active sonar can sometimes scare away marine life.

使用主动声纳有时会吓跑海洋生物。

3.The submarine deployed its active sonar to detect nearby vessels.

潜艇使用了它的主动声纳来探测附近的船只。

4.Using active sonar, the research team was able to map the ocean floor accurately.

研究小组使用主动声纳能够准确地绘制海底地图。

5.The fishing boat relied on active sonar to find schools of fish.

渔船依靠主动声纳寻找鱼群。

作文

Active sonar is a technology primarily used in underwater navigation and detection. It operates by emitting sound waves into the water and listening for the echoes that bounce back from objects. This method is particularly useful for locating submarines, shipwrecks, and other underwater obstacles. The principle behind active sonar (主动声纳) is quite simple; when sound waves are sent out, they travel through the water until they hit an object and reflect back to the source. By measuring the time it takes for the echoes to return, operators can determine the distance to the object. The development of active sonar (主动声纳) dates back to the early 20th century, with significant advancements made during World War II. The military recognized the importance of detecting enemy submarines, leading to extensive research and deployment of this technology. Today, active sonar (主动声纳) is not only used by naval forces but also in commercial shipping, fishing industries, and scientific research. One of the advantages of active sonar (主动声纳) is its ability to provide real-time information about the underwater environment. This capability allows ships and submarines to navigate safely and avoid hazards. Moreover, it can be used to map the sea floor, which is essential for various marine activities, including oil drilling and laying underwater cables. However, active sonar (主动声纳) has its drawbacks. The sound waves emitted can disturb marine life, particularly species that rely on echolocation, such as dolphins and whales. There have been numerous studies indicating that loud underwater noises can lead to disorientation, stress, and even strandings among these animals. Therefore, the use of active sonar (主动声纳) must be carefully managed to minimize its impact on marine ecosystems. In contrast to active sonar (主动声纳), there is another method known as passive sonar. Passive sonar does not emit sound waves but instead listens for sounds made by other objects, such as ships or marine animals. This method is less intrusive and does not disrupt marine life, making it a preferred choice in certain situations. However, passive sonar may not provide the same level of detail or accuracy as active sonar (主动声纳), especially in complex environments. As technology continues to evolve, we can expect further improvements in active sonar (主动声纳) systems. Innovations such as advanced signal processing and machine learning algorithms are being integrated into sonar technology, enhancing its capabilities. These advancements could lead to more precise detections and a better understanding of underwater environments, ultimately benefiting both military and civilian applications. In conclusion, active sonar (主动声纳) plays a crucial role in underwater exploration and navigation. While it offers significant advantages in terms of real-time data and object detection, it also poses challenges for marine life. Balancing the benefits of active sonar (主动声纳) with the need to protect our oceans will be essential as we continue to explore and utilize the underwater world.

主动声纳是一种主要用于水下导航和探测的技术。它通过向水中发射声波并监听从物体反弹回来的回声来工作。这种方法对于定位潜艇、沉船和其他水下障碍物特别有用。active sonar（主动声纳）的原理相当简单；当声波被发出时，它们会穿过水面，直到撞击到物体并反射回源头。通过测量回声返回所需的时间，操作员可以确定与物体的距离。active sonar（主动声纳）的发展可以追溯到20世纪初，二战期间取得了重大进展。军事部门意识到探测敌方潜艇的重要性，导致对这项技术的广泛研究和部署。如今，active sonar（主动声纳）不仅被海军使用，还在商业航运、渔业和科学研究中得到应用。active sonar（主动声纳）的一个优势是能够提供关于水下环境的实时信息。这一能力使船只和潜艇能够安全航行并避免危险。此外，它还可以用于绘制海底地图，这对包括石油钻探和铺设水下电缆等各种海洋活动至关重要。然而，active sonar（主动声纳）也有其缺点。发出的声波可能会干扰海洋生物，尤其是依赖回声定位的物种，如海豚和鲸鱼。有许多研究表明，响亮的水下噪音会导致这些动物的迷失方向、压力甚至搁浅。因此，必须谨慎管理active sonar（主动声纳）的使用，以尽量减少对海洋生态系统的影响。与active sonar（主动声纳）相对的是另一种方法，称为被动声纳。被动声纳不发出声波，而是倾听其他物体发出的声音，如船只或海洋动物。这种方法对环境的干扰较小，不会破坏海洋生物，使其在某些情况下成为首选。然而，被动声纳可能无法提供与active sonar（主动声纳）相同的细节或准确性，尤其是在复杂环境中。随着技术的不断发展，我们可以预期active sonar（主动声纳）系统的进一步改进。先进的信号处理和机器学习算法正在被整合到声纳技术中，从而增强其能力。这些进步可能导致更精确的探测和对水下环境的更好理解，最终使军事和民用应用受益。总之，active sonar（主动声纳）在水下探索和导航中发挥着至关重要的作用。尽管它在实时数据和物体探测方面提供了显著的优势，但也给海洋生物带来了挑战。在我们继续探索和利用水下世界的同时，平衡active sonar（主动声纳）的好处与保护海洋的需要将是至关重要的。