outermost portion

简明释义

最外部分

英英释义

例句

1.The outermost portion of the atmosphere is where satellites orbit the Earth.

大气的外层部分是卫星绕地球轨道飞行的地方。

2.We need to paint the outermost portion of the fence to protect it from weather damage.

我们需要给围栏的最外层部分上漆，以保护它免受天气损害。

3.In astronomy, the outermost portion of a galaxy can contain many interesting phenomena.

在天文学中，星系的最外层部分可能包含许多有趣的现象。

4.The outermost portion of the skin acts as a barrier against pathogens.

皮肤的外层部分充当了抵御病原体的屏障。

5.The outermost portion of the fruit is often the most colorful and appealing.

水果的外层部分通常是最有色彩和吸引力的。

作文

The universe is a vast expanse filled with countless mysteries waiting to be explored. Among the many wonders of the cosmos, our own planet Earth holds a special place. It is not just the land and water that make up our world; it is also the atmosphere that envelops it. The atmosphere is divided into several layers, each with its own unique characteristics and functions. At the very edge of this protective layer lies the outermost portion of our atmosphere, known as the exosphere. This region is crucial for understanding how our planet interacts with space and how it protects us from harmful cosmic rays.The outermost portion of the atmosphere begins at an altitude of about 600 kilometers above sea level and extends to approximately 10,000 kilometers. In this layer, the air is extremely thin, and particles are so sparse that they can travel hundreds of kilometers without colliding with one another. This unique environment allows satellites to orbit the Earth with minimal atmospheric drag, making it an ideal location for space missions.Understanding the outermost portion of the atmosphere is essential for scientists who study climate change and its effects on our planet. As we release greenhouse gases into the atmosphere, they can have a profound impact on the layers below, leading to global warming and other environmental issues. By studying the interactions between the exosphere and the layers beneath it, researchers can gain insights into how these changes occur and what can be done to mitigate their effects.In addition to its scientific importance, the outermost portion of the atmosphere also plays a vital role in protecting life on Earth. It acts as a shield against solar radiation and cosmic rays, which can be harmful to living organisms. Without this protective barrier, life as we know it would be impossible. The exosphere helps to filter out these harmful particles, allowing only a small fraction to reach the surface of the Earth.Moreover, the outermost portion of the atmosphere is where many artificial satellites operate. These satellites provide us with crucial data for weather forecasting, communication, and navigation. They rely on the unique conditions found in the exosphere to function effectively. As technology continues to advance, more satellites will be launched into this region, further emphasizing the need to understand its dynamics.In conclusion, the outermost portion of our atmosphere, the exosphere, is a fascinating and essential part of our planet's system. It not only serves as a protective barrier against harmful radiation but also plays a critical role in our understanding of climate change and the functioning of satellites. As we continue to explore the universe and our own planet, it is vital to study and appreciate the significance of this remarkable layer that surrounds us. Understanding the outermost portion of the atmosphere is not just an academic pursuit; it is a necessity for ensuring the health and safety of our planet and its inhabitants.

宇宙是一个广阔的空间，充满了无数等待探索的奥秘。在众多宇宙奇观中，我们的地球拥有特殊的地位。构成我们世界的，不仅仅是土地和水，还有包围它的氛围。大气层分为几个层次，每个层次都有其独特的特征和功能。在这个保护层的边缘，位于约600公里海拔高度的地方，是我们大气的outermost portion，被称为外逸层。这个区域对于理解我们的星球如何与太空互动以及如何保护我们免受有害宇宙射线的影响至关重要。outermost portion的大气层从海平面上方约600公里的高度开始，延伸到大约10,000公里。在这一层中，空气极其稀薄，粒子稀少，以至于它们可以在几百公里的距离内不发生碰撞。这种独特的环境使得卫星能够以最小的大气阻力绕地球轨道运行，成为太空任务的理想位置。理解outermost portion的大气层对于研究气候变化及其对我们星球影响的科学家至关重要。随着我们向大气中释放温室气体，它们会对下方的层次产生深远的影响，导致全球变暖和其他环境问题。通过研究外逸层与其下方层次之间的相互作用，研究人员可以深入了解这些变化如何发生，以及我们可以采取什么措施来减轻其影响。除了科学重要性，outermost portion的大气层还在保护地球生命方面发挥着至关重要的作用。它充当了对抗太阳辐射和宇宙射线的屏障，这些辐射可能对生物有害。如果没有这个保护屏障，生活将无法存在。外逸层帮助过滤这些有害粒子，只有一小部分能到达地球表面。此外，outermost portion的大气层也是许多人工卫星运行的地方。这些卫星为我们提供天气预报、通信和导航等重要数据。它们依赖外逸层中的独特条件来有效运作。随着技术的不断进步，越来越多的卫星将被发射到这一地区，进一步强调了理解其动态的重要性。总之，我们大气的outermost portion，外逸层，是我们星球系统中一个迷人而重要的部分。它不仅充当有害辐射的保护屏障，还在我们理解气候变化和卫星功能方面发挥着关键作用。在我们继续探索宇宙和我们自己星球的过程中，研究和欣赏这个环绕着我们的显著层次的重要性至关重要。理解outermost portion的大气层不仅仅是一项学术追求；它是确保我们星球及其居民健康和安全的必要条件。