active sonar

简明释义

主动声呐

英英释义

例句

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

潜艇使用了主动声纳来探测附近的船只。

2.The scientist explained how active sonar works by emitting sound waves.

科学家解释了主动声纳如何通过发射声波来工作。

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

渔船依靠主动声纳找到鱼群。

4.In military exercises, active sonar is crucial for locating enemy submarines.

在军事演习中，主动声纳对于定位敌方潜艇至关重要。

5.Using active sonar, the research team mapped the ocean floor.

研究小组使用主动声纳绘制了海底地图。

作文

Active sonar is a technology that plays a crucial role in underwater exploration and navigation. It involves the emission of sound waves into the water, which then bounce off objects and return to the source. This technique allows submarines, ships, and researchers to detect and locate various underwater objects, including other vessels, marine life, and underwater terrain. The principle behind active sonar (主动声纳) is relatively straightforward: sound travels faster in water than in air, making it an effective medium for communication and detection. One of the primary applications of active sonar (主动声纳) is in military operations. Navies around the world utilize this technology to track enemy submarines and surface ships. By sending out sound pulses and analyzing the echoes that return, naval forces can determine the distance, speed, and direction of potential threats. This capability is vital for maintaining maritime security and ensuring safe navigation in contested waters.In addition to military uses, active sonar (主动声纳) is also employed in scientific research. Marine biologists use this technology to study marine life and their habitats. For instance, researchers can monitor fish populations, track migration patterns, and assess the health of ecosystems. By understanding the behavior and distribution of marine species, scientists can contribute to conservation efforts and sustainable fishing practices.Furthermore, active sonar (主动声纳) is essential for underwater construction and maintenance. Engineers use this technology to map the seabed, identify submerged structures, and ensure the safety of underwater operations. Whether it’s laying cables, constructing pipelines, or repairing offshore platforms, active sonar (主动声纳) provides valuable information that helps minimize risks and improve efficiency.However, the use of active sonar (主动声纳) is not without its challenges and controversies. One significant concern is the impact of sound pollution on marine life. Many species, especially marine mammals like dolphins and whales, rely on echolocation for navigation and communication. The loud sounds produced by active sonar (主动声纳) can disrupt their natural behaviors, leading to disorientation, stress, and even strandings. As a result, environmentalists advocate for stricter regulations on the use of active sonar (主动声纳) in sensitive marine areas.To mitigate these impacts, researchers are exploring alternative technologies and methods. Passive sonar, for example, involves listening for sounds made by objects rather than emitting sound waves. This approach can provide similar information without the associated risks of sound pollution. Additionally, advancements in technology may lead to the development of quieter sonar systems that reduce their impact on marine ecosystems.In conclusion, active sonar (主动声纳) is a powerful tool with diverse applications in military, scientific, and engineering fields. While it offers significant benefits in terms of detection and navigation, it also raises important environmental concerns. As we continue to explore and utilize our oceans, it is crucial to balance technological advancements with the preservation of marine life. By doing so, we can ensure that the benefits of active sonar (主动声纳) are realized while minimizing its negative impacts on the underwater world.

主动声纳是一种在水下探索和导航中发挥关键作用的技术。它涉及向水中发射声波，然后声波会反射到物体上并返回源头。这项技术使潜艇、船舶和研究人员能够探测和定位各种水下物体，包括其他船只、海洋生物和水下地形。主动声纳（active sonar）的原理相对简单：声波在水中的传播速度比在空气中快，这使其成为有效的通信和探测媒介。主动声纳（active sonar）的主要应用之一是在军事行动中。世界各国的海军利用这项技术追踪敌方潜艇和水面舰艇。通过发送声脉冲并分析返回的回声，海军可以确定潜在威胁的距离、速度和方向。这一能力对于维护海洋安全和确保在争夺水域中的安全航行至关重要。除了军事用途，主动声纳（active sonar）也被用于科学研究。海洋生物学家使用这项技术研究海洋生物及其栖息地。例如，研究人员可以监测鱼类种群、跟踪迁徙模式并评估生态系统的健康。通过了解海洋物种的行为和分布，科学家可以为保护工作和可持续捕鱼实践做出贡献。此外，主动声纳（active sonar）对于水下建设和维护至关重要。工程师使用这项技术绘制海底地图、识别水下结构，并确保水下作业的安全。无论是铺设电缆、建设管道还是修理海上平台，主动声纳（active sonar）提供了有价值的信息，有助于降低风险并提高效率。然而，使用主动声纳（active sonar）并非没有挑战和争议。一个重大问题是声音污染对海洋生物的影响。许多物种，尤其是海洋哺乳动物如海豚和鲸鱼，依赖回声定位进行导航和交流。主动声纳（active sonar）产生的巨大声音可能会干扰它们的自然行为，导致迷失方向、压力甚至搁浅。因此，环保人士倡导在敏感海域对主动声纳（active sonar）的使用实施更严格的规定。为了减轻这些影响，研究人员正在探索替代技术和方法。例如，被动声纳涉及监听物体发出的声音，而不是发出声波。这种方法可以提供类似的信息，而不带有声污染的相关风险。此外，技术的进步可能会导致开发出更安静的声纳系统，从而减少对海洋生态系统的影响。总之，主动声纳（active sonar）是一种在军事、科学和工程领域具有多种应用的强大工具。虽然它在探测和导航方面提供了显著的好处，但也引发了重要的环境问题。在我们继续探索和利用海洋的同时，平衡技术进步与海洋生物保护至关重要。通过这样做，我们可以确保实现主动声纳（active sonar）的好处，同时将其对水下世界的负面影响降到最低。