atmospheric pressure

简明释义

大气压力

英英释义

例句

1.Meteorologists use atmospheric pressure readings to predict weather patterns and changes.

气象学家利用大气压读数来预测天气模式和变化。

2.The weather balloon ascended until it reached a point where the atmospheric pressure was significantly lower than at sea level.

气象气球升空，直到它达到一个大气压明显低于海平面的高度。

3.Engineers must consider atmospheric pressure when designing aircraft to ensure they can operate effectively at high altitudes.

工程师在设计飞机时必须考虑大气压，以确保它们在高海拔地区能够有效运行。

4.A decrease in atmospheric pressure can indicate an approaching storm.

大气压的下降可能预示着暴风雨的来临。

5.The boiling point of water changes with atmospheric pressure, boiling at lower temperatures at higher altitudes.

水的沸点随着大气压的变化而变化，在更高海拔处以更低的温度沸腾。

作文

Atmospheric pressure, often referred to as air pressure, is the force exerted by the weight of the air above a particular point on the Earth's surface. This pressure plays a crucial role in various natural phenomena and is an essential concept in both meteorology and physics. Understanding atmospheric pressure 大气压力 is fundamental for grasping how weather patterns develop, how airplanes fly, and even how our bodies function at different altitudes.At sea level, the average atmospheric pressure 大气压力 is approximately 1013.25 hPa (hectopascals) or 101.3 kPa (kilopascals). However, this value can change based on weather conditions and altitude. For instance, as one ascends a mountain, the atmospheric pressure 大气压力 decreases because there is less air above to exert force. This decrease in pressure can lead to altitude sickness for some individuals who are not acclimatized to such conditions.Meteorologists closely monitor atmospheric pressure 大气压力 because it is a key indicator of weather changes. High-pressure systems are typically associated with clear skies and calm weather, while low-pressure systems often bring clouds, precipitation, and storms. The movement of these pressure systems across the globe drives wind patterns and influences climate. For example, when a high-pressure system moves into an area, it can lead to sunny days, whereas a low-pressure system might result in rainy weather.In aviation, pilots must also consider atmospheric pressure 大气压力 when planning flights. Aircraft are designed to operate efficiently at specific altitudes, where atmospheric pressure 大气压力 varies significantly. As planes ascend, they encounter lower pressures, which affects lift and engine performance. Therefore, understanding how to manage these changes is vital for safe flying.Furthermore, atmospheric pressure 大气压力 has implications for human health. At higher altitudes, where the atmospheric pressure 大气压力 is lower, there is less oxygen available. This can lead to hypoxia, a condition where the body does not receive enough oxygen. Many athletes train at high altitudes to enhance their performance, as their bodies adapt to lower levels of oxygen, improving their efficiency when they return to lower altitudes.In conclusion, atmospheric pressure 大气压力 is a fundamental aspect of our environment that affects weather, aviation, and human health. By understanding this concept, we can better appreciate the complexities of our atmosphere and its impact on daily life. Whether you are observing the weather forecast, flying in an airplane, or hiking in the mountains, the significance of atmospheric pressure 大气压力 is always present, influencing our experiences in profound ways.

大气压力，通常被称为空气压力，是由地球表面上方空气的重量所施加的力。这种压力在各种自然现象中发挥着至关重要的作用，是气象学和物理学中的基本概念。理解大气压力对于掌握天气模式的发展、飞机的飞行甚至我们身体在不同高度下的功能都是基础。在海平面上，平均大气压力约为1013.25 hPa（百帕斯卡）或101.3 kPa（千帕斯卡）。然而，这个值会根据天气条件和海拔高度而变化。例如，当人们攀登一座山时，大气压力会降低，因为上方的空气较少，施加的力也相应减少。这种压力的下降可能会导致一些未适应这种环境的人出现高原反应。气象学家密切监测大气压力，因为它是天气变化的关键指标。高压系统通常与晴朗的天空和宁静的天气相关，而低压系统则常常带来云层、降水和风暴。这些压力系统在全球的移动驱动了风的模式并影响了气候。例如，当一个高压系统进入某个地区时，可能会导致阳光明媚的日子，而一个低压系统则可能导致降雨天气。在航空方面，飞行员在规划航班时也必须考虑大气压力。飞机设计为在特定的高度高效运行，而在这些高度上，大气压力变化显著。随着飞机的升高，它们会遇到较低的压力，这会影响升力和发动机性能。因此，理解如何管理这些变化对于安全飞行至关重要。此外，大气压力对人类健康也有影响。在高海拔地区，由于大气压力较低，可用的氧气也较少。这可能导致缺氧，即身体无法获得足够的氧气。许多运动员在高海拔地区训练以提高他们的表现，因为他们的身体会适应较低的氧气水平，从而在返回较低海拔时提高效率。总之，大气压力是我们环境的基本方面，影响天气、航空和人类健康。通过理解这一概念，我们可以更好地欣赏大气的复杂性及其对日常生活的影响。无论你是在观察天气预报、乘坐飞机还是在山中徒步旅行，大气压力的重要性始终存在，以深远的方式影响我们的经历。