isthmus

简明释义

英[ˈɪsməs]美[ˈɪsməs]

n. 地峡；管峡

复 数 i s t h m u s e s 或 i s t h m i

英英释义

单词用法

同义词

反义词

例句

1.The present and future continents north and south, with the isthmus.

现在与未来的大陆在南北分立中间则有着地峡。

2.North and South American species migrating across the Isthmus now came into competition with each other.

北美和南美的物种迁徙穿过地峡，现在开始互相竞争。

3.The reanastomosis of isthmus and isthmus resulted in the highest rate of intrauterine pregnancy.

输卵管峡部吻合后宫内妊娠率最高。

4.Objective: Typical atrial flutter (AFL) was treated by posterior isthmus liner radiofrequency catheter ablation (RFCA) technique.

目的：采用右心房后位峡部线性消融治疗典型心房扑动。

5.While previously the gap between the continents had allowed a free flow of water, now the isthmus presented a barrier that divided the Atlantic Ocean from the Pacific Ocean.

以前，大陆之间的鸿沟允许水自由流动；而现在地峡形成了一道屏障，把大西洋和太平洋分隔开来。

6.The isthmus that connects Central America and South America.

连接中美洲和南美洲的一个地峡。

7.The morphological structure and secrete mode of oviducal glands in isthmus was different with others places in the oviduct.

峡部的输卵管腺与其他部位的输卵管腺在形态结构和分泌方式上明显不同。

8.Many animals migrate across the isthmus 地峡 of Central America during their seasonal journeys.

许多动物在季节性迁徙中穿越中美洲的地峡 isthmus。

9.The isthmus 地峡 of Tehuantepec is one of the narrowest points in Mexico.

特瓦特佩克地峡 isthmus是墨西哥最狭窄的地方之一。

10.The Panama Canal was built across the isthmus 地峡 to connect the Atlantic and Pacific Oceans.

巴拿马运河是建在地峡 isthmus上，以连接大西洋和太平洋。

11.The isthmus 地峡 of Corinth separates the Peloponnese from mainland Greece.

科林斯地峡 isthmus将伯罗奔尼撒半岛与希腊大陆分开。

12.Geographers often study the isthmus 地峡 of Suez for its strategic importance.

地理学家常常研究苏伊士地峡 isthmus的战略重要性。

作文

The concept of an isthmus is fascinating and plays a crucial role in geography and ecology. An isthmus is a narrow strip of land that connects two larger landmasses and is surrounded by water on both sides. One of the most famous examples of an isthmus is the Panama isthmus, which connects North America and South America. This geographical feature has significant implications for trade, biodiversity, and cultural exchange.Historically, isthmuses have been vital for human civilization. The Panama isthmus was the site of the Panama Canal, one of the most important engineering feats of the 20th century. The canal revolutionized maritime trade by allowing ships to travel between the Atlantic and Pacific Oceans without having to navigate around the southern tip of South America. This not only saved time but also reduced the costs associated with shipping goods across long distances.In addition to their economic importance, isthmuses are also rich in biodiversity. The unique ecosystems that develop in these areas often serve as critical habitats for various species of plants and animals. For example, the Isthmus of Tehuantepec in Mexico is recognized for its diverse flora and fauna, some of which are endemic to the region. The convergence of different ecosystems on isthmuses can lead to high levels of biodiversity and endemism, making them essential for conservation efforts.Culturally, isthmuses have served as pathways for migration and the spread of ideas. The narrow land connections allow for easier movement of people and cultures, leading to a rich tapestry of traditions and interactions. The history of the Panama isthmus is filled with stories of exploration and conquest, as various civilizations sought to control this strategic location.Furthermore, the study of isthmuses can provide insights into geological processes. Many isthmuses are formed through tectonic activity, sediment deposition, or sea level changes. Understanding how these landforms are created and evolve over time can help scientists predict future changes in the landscape and the potential impacts on human activities and natural ecosystems.In conclusion, the significance of an isthmus extends far beyond its geographical definition. It embodies a blend of historical, ecological, and cultural importance. As we continue to explore and understand our world, recognizing the value of isthmuses can help us appreciate the intricate connections that shape our planet. Whether it’s through facilitating trade, supporting diverse ecosystems, or serving as conduits for cultural exchange, isthmuses are indeed remarkable features that deserve our attention and protection.

“isthmus”这个概念令人着迷，并在地理和生态学中发挥着至关重要的作用。isthmus是连接两个更大陆地并被水域包围的狭长土地。最著名的例子之一是巴拿马isthmus，它连接北美和南美。这一地理特征对贸易、生物多样性和文化交流有着重要影响。从历史上看，isthmuses对人类文明至关重要。巴拿马isthmus是巴拿马运河的所在地，这是一项20世纪最重要的工程壮举之一。运河通过允许船只在大西洋和太平洋之间旅行，而无需绕过南美洲的南端，彻底改变了海洋贸易。这不仅节省了时间，还减少了与长途运输货物相关的成本。除了经济重要性，isthmuses还拥有丰富的生物多样性。这些地区独特的生态系统通常作为各种植物和动物物种的重要栖息地。例如，墨西哥的特华特佩克isthmus因其多样的动植物而受到认可，其中一些是该地区特有的。在isthmuses上，不同生态系统的汇聚可以导致高度的生物多样性和特有性，使其在保护工作中至关重要。在文化上，isthmuses作为迁徙和思想传播的通道。狭窄的陆地连接使人们和文化的移动变得更加容易，形成了丰富的传统和互动。巴拿马isthmus的历史充满了探索和征服的故事，各种文明都试图控制这一战略位置。此外，研究isthmuses可以提供关于地质过程的见解。许多isthmuses是通过构造活动、沉积物沉积或海平面变化形成的。了解这些地形如何形成以及随时间演变，可以帮助科学家预测未来景观的变化及其对人类活动和自然生态系统的潜在影响。总之，isthmus的重要性远不止其地理定义。它体现了历史、生态和文化的重要交融。随着我们继续探索和理解我们的世界，认识到isthmuses的价值可以帮助我们欣赏塑造我们星球的复杂联系。无论是通过促进贸易、支持多样的生态系统，还是作为文化交流的通道，isthmuses确实是值得我们关注和保护的非凡特征。