deep-ocean trench

简明释义

深海沟

英英释义

例句

1.The pressure at the bottom of a deep-ocean trench 深海沟 is over 1000 times that of the surface.

在深海沟 深海沟的底部，压力超过地表的1000倍。

2.Scientists are studying the unique ecosystems found in deep-ocean trenches 深海沟 to understand how life can thrive in extreme conditions.

科学家们正在研究在深海沟 深海沟中发现的独特生态系统，以了解生命如何能在极端条件下繁衍。

3.The Tonga Trench is another significant deep-ocean trench 深海沟 located in the South Pacific.

汤加沟是位于南太平洋的另一个重要的深海沟 深海沟。

4.Explorations of deep-ocean trenches 深海沟 have revealed new species of marine life.

对深海沟 深海沟的探索揭示了新的海洋生物物种。

5.The Mariana Trench is the deepest known deep-ocean trench 深海沟 in the world.

马里亚纳沟是世界上已知最深的深海沟 深海沟。

作文

The Earth's oceans are vast and mysterious, covering more than 70% of the planet's surface. Among the many fascinating features found beneath the waves, one of the most intriguing is the deep-ocean trench. A deep-ocean trench (深海沟) is a narrow, elongated depression in the ocean floor that reaches extreme depths, often exceeding 6,000 meters (19,685 feet). These trenches are formed by tectonic processes, particularly the subduction of one tectonic plate beneath another. This geological phenomenon creates some of the deepest parts of the world's oceans and plays a crucial role in the Earth’s geological activity.One of the most well-known examples of a deep-ocean trench (深海沟) is the Mariana Trench, located in the western Pacific Ocean. It is the deepest known oceanic trench in the world, reaching a depth of about 11,034 meters (36,201 feet). The Mariana Trench is not only significant for its depth but also for the unique ecosystems that thrive in such extreme conditions. Scientists have discovered various forms of life in the trench, including microorganisms, crustaceans, and even fish that have adapted to the high pressure and darkness of the deep sea.Studying deep-ocean trenches (深海沟) provides valuable insights into the Earth's geology and the history of our planet. These trenches are often associated with volcanic activity, as the subduction process can lead to the formation of volcanic arcs. For instance, the Aleutian Trench in Alaska is linked to the Aleutian Islands, which are a result of volcanic activity caused by the subduction of the Pacific Plate beneath the North American Plate.Moreover, deep-ocean trenches (深海沟) are essential for understanding the carbon cycle and climate change. They act as natural sinks for carbon, as organic materials from the surface waters sink into these trenches, sequestering carbon in the deep ocean. This process is crucial for regulating the Earth's climate, as it helps to remove carbon dioxide from the atmosphere.However, deep-ocean trenches (深海沟) are also vulnerable to human activities. Deep-sea mining, for example, poses a significant threat to these delicate ecosystems. The extraction of minerals and resources from the ocean floor can lead to habitat destruction and the loss of biodiversity. Additionally, pollution from land-based sources can affect the health of these deep-sea environments, as plastics and other contaminants can find their way into the trenches.In conclusion, deep-ocean trenches (深海沟) are remarkable features of our planet that deserve further exploration and protection. They hold secrets about the Earth's geological past, provide unique habitats for various organisms, and play a crucial role in global climate regulation. As we continue to learn more about these mysterious places, it is vital to balance our scientific curiosity with the need to preserve these ecosystems for future generations. Understanding the importance of deep-ocean trenches (深海沟) can help us foster a greater appreciation for the oceans and the complex processes that govern our planet's health.

地球的海洋广阔而神秘，覆盖了地球表面的70%以上。在波涛之下，许多迷人的特征中，最引人入胜的之一就是深海沟。深海沟（deep-ocean trench）是海底狭窄的延伸凹陷，达到极端深度，通常超过6000米（19685英尺）。这些沟壑是由构造过程形成的，特别是一个构造板块在另一个板块下沉。这种地质现象创造了世界上最深的海洋部分，并在地球的地质活动中发挥着重要作用。一个最著名的深海沟（deep-ocean trench）例子是位于西太平洋的马里亚纳海沟。它是世界上已知的最深的海洋沟，深度约为11034米（36201英尺）。马里亚纳海沟不仅因其深度而重要，还因在如此极端条件下生存的独特生态系统。科学家们在海沟中发现了各种生命形式，包括微生物、甲壳类动物甚至适应了深海高压和黑暗环境的鱼类。研究深海沟（deep-ocean trench）为我们提供了关于地球地质和地球历史的宝贵见解。这些沟壑通常与火山活动有关，因为下沉过程可以导致火山弧的形成。例如，阿留申海沟与阿留申群岛相关联，阿留申群岛是由于太平洋板块在北美板块下沉而导致的火山活动。此外，深海沟（deep-ocean trench）对理解碳循环和气候变化至关重要。它们作为碳的自然汇，因为来自表层水域的有机物质沉入这些沟壑，将碳封存于深海。这一过程对调节地球气候至关重要，因为它有助于从大气中去除二氧化碳。然而，深海沟（deep-ocean trench）也容易受到人类活动的影响。深海采矿，例如，对这些脆弱生态系统构成了重大威胁。从海底提取矿物和资源可能导致栖息地破坏和生物多样性的丧失。此外，来自陆地源的污染可能影响这些深海环境的健康，因为塑料和其他污染物可能会进入海沟。总之，深海沟（deep-ocean trench）是我们星球上令人惊叹的特征，值得进一步探索和保护。它们隐藏着关于地球地质过去的秘密，为各种生物提供独特栖息地，并在全球气候调节中发挥着关键作用。随着我们继续了解这些神秘的地方，平衡我们的科学好奇心与保护这些生态系统的需要至关重要。理解深海沟（deep-ocean trench）的重要性可以帮助我们培养对海洋及其复杂过程的更大欣赏，这些过程支配着我们星球的健康。