atmospheric density

简明释义

大气密度

英英释义

例句

1.The spacecraft's trajectory was adjusted based on the changes in atmospheric density.

航天器的轨迹根据大气密度的变化进行了调整。

2.Pilots must consider atmospheric density when calculating takeoff distances.

飞行员在计算起飞距离时必须考虑大气密度。

3.The performance of rockets is affected by atmospheric density during launch.

火箭的性能在发射时受到大气密度的影响。

4.Meteorologists analyze atmospheric density to predict weather patterns.

气象学家分析大气密度以预测天气模式。

5.As altitude increases, atmospheric density decreases significantly.

随着高度的增加，大气密度显著降低。

作文

The concept of atmospheric density refers to the mass of air per unit volume in the Earth's atmosphere. This characteristic is critical for understanding various atmospheric phenomena and plays a vital role in fields such as meteorology, aviation, and environmental science. The atmospheric density decreases with altitude, meaning that as one ascends into the atmosphere, there are fewer air molecules in a given volume. This decrease can significantly affect weather patterns, aircraft performance, and even the behavior of pollutants in the air.Understanding atmospheric density is essential for meteorologists who study weather conditions. For instance, when warm air rises, it expands due to lower atmospheric density at higher altitudes. This phenomenon can lead to cloud formation and precipitation. Conversely, cold air is denser and tends to sink, which can create high-pressure systems. These interactions between different atmospheric densities are the foundation of weather systems and forecasts.In aviation, atmospheric density is a critical factor affecting an aircraft's lift and engine performance. Pilots must account for changes in atmospheric density when flying at different altitudes. For example, at higher altitudes, the lower atmospheric density means that aircraft engines produce less thrust, and wings generate less lift. This is why takeoff and landing procedures vary depending on the elevation of the airport and current weather conditions. Understanding how atmospheric density affects flight is crucial for ensuring safety and efficiency in air travel.Moreover, atmospheric density plays a significant role in environmental science, particularly in studies related to air pollution. Pollutants such as carbon dioxide and particulate matter behave differently depending on the atmospheric density. In areas with lower atmospheric density, pollutants may disperse more quickly, while in denser air, they can accumulate and lead to smog or poor air quality. Understanding these dynamics helps scientists and policymakers develop strategies to combat air pollution and protect public health.Additionally, the study of atmospheric density extends beyond Earth. In space exploration, understanding the atmospheric density of other planets, such as Mars or Venus, is crucial for mission planning and spacecraft design. For example, Mars has a very thin atmosphere, resulting in a much lower atmospheric density compared to Earth. This difference affects everything from landing techniques to the potential for human colonization.In conclusion, atmospheric density is a fundamental concept that influences many aspects of our environment and activities. From weather patterns to aviation safety and environmental health, understanding atmospheric density is essential for scientists, engineers, and policymakers alike. As we continue to explore our planet and beyond, the importance of atmospheric density will only grow, highlighting the need for ongoing research and education in this vital field.

“大气密度”这一概念是指地球大气中每单位体积的空气质量。这个特征对于理解各种大气现象至关重要，并在气象学、航空和环境科学等领域发挥着重要作用。“大气密度”随着高度的增加而降低，这意味着当人们上升到大气中时，在给定体积内的空气分子减少。这一下降会显著影响天气模式、飞机性能，甚至空气中污染物的行为。理解“大气密度”对研究天气状况的气象学家至关重要。例如，当暖空气上升时，由于高海拔地区“大气密度”较低，它会膨胀。这一现象可能导致云的形成和降水。相反，冷空气更密集，往往下沉，这可能形成高压系统。这些不同“大气密度”之间的相互作用是天气系统和预报的基础。在航空领域，“大气密度”是影响飞机升力和发动机性能的关键因素。飞行员必须在不同高度飞行时考虑“大气密度”的变化。例如，在高海拔地区，较低的“大气密度”意味着飞机发动机产生的推力较小，机翼产生的升力也较少。这就是为什么起飞和着陆程序会根据机场的海拔和当前天气条件有所不同。理解“大气密度”对飞行的影响对确保航空旅行的安全和效率至关重要。此外，“大气密度”在环境科学中也发挥着重要作用，特别是在与空气污染相关的研究中。二氧化碳和颗粒物等污染物的行为取决于“大气密度”。在“大气密度”较低的地区，污染物可能更快扩散，而在密度较大的空气中，它们可能会积聚并导致雾霾或空气质量差。理解这些动态有助于科学家和政策制定者制定应对空气污染和保护公众健康的策略。此外，“大气密度”的研究不仅限于地球。在太空探索中，理解其他行星（如火星或金星）的“大气密度”对任务规划和航天器设计至关重要。例如，火星的大气非常稀薄，导致其“大气密度”远低于地球。这种差异影响着从着陆技术到人类殖民潜力的方方面面。总之，“大气密度”是一个基本概念，影响着我们环境和活动的许多方面。从天气模式到航空安全，再到环境健康，理解“大气密度”对科学家、工程师和政策制定者来说都是至关重要的。随着我们继续探索我们的星球及其之外，“大气密度”的重要性只会增加，突显出在这一重要领域进行持续研究和教育的必要性。