air pressure

简明释义

空气压力

英英释义

例句

1.The weather forecast predicts a drop in air pressure 气压, which means a storm is likely to occur.

天气预报预测气压将下降，这意味着可能会发生暴风雨。

2.Pilots must monitor air pressure 气压 levels to ensure safe flying conditions.

飞行员必须监控气压水平以确保安全飞行条件。

3.High air pressure 气压 usually indicates clear skies and good weather.

高气压通常表示晴朗的天空和良好的天气。

4.When climbing a mountain, you may experience changes in air pressure 气压 that can affect your breathing.

在爬山时，你可能会经历气压的变化，这会影响你的呼吸。

5.A tire's performance is heavily influenced by the air pressure 气压 inside it.

轮胎的性能受到内部气压的严重影响。

作文

Air pressure, or 气压, is a fundamental concept in both meteorology and physics. It refers to the weight of the air above us pressing down on the Earth's surface. This invisible force plays a crucial role in weather patterns, human health, and even in the functioning of various technologies. Understanding 气压 can help us comprehend how our atmosphere works and its impact on our daily lives.To start with, let’s explore what causes 气压. The atmosphere is composed of different gases, primarily nitrogen and oxygen, and these gases have mass. When we consider the entire column of air above us, it exerts a force due to gravity. This force is what we measure as 气压. On average, at sea level, the 气压 is about 1013.25 hPa (hectopascals), but this value can change based on altitude and weather conditions.One of the most significant effects of 气压 is its influence on weather. High 气压 areas are typically associated with clear skies and stable weather, while low 气压 systems can lead to clouds, precipitation, and storms. Meteorologists use 气压 readings to predict weather changes, making it an essential tool in forecasting. For instance, when a low-pressure system approaches, we can expect rain or even thunderstorms, whereas high-pressure systems usually bring fair weather.Moreover, 气压 affects us physically as well. As we ascend to higher altitudes, such as climbing a mountain, the 气压 decreases. This reduction can lead to altitude sickness, where individuals experience symptoms like dizziness, headaches, and shortness of breath. Understanding how 气压 changes with altitude is vital for mountaineers and aviators alike, as it helps them prepare for the physical challenges they may face.In addition to weather and health, 气压 plays an integral role in various technologies. For example, airplanes are designed to operate efficiently at high altitudes where 气压 is lower. Engineers must consider 气压 when designing aircraft to ensure they can maintain lift and control under varying atmospheric conditions. Furthermore, devices like barometers measure 气压 and are used in many applications, from predicting weather to calibrating instruments.In everyday life, we also encounter 气压 in simple activities. For instance, when we drink from a straw, we create a low 气压 area inside the straw, allowing atmospheric 气压 to push the liquid up. Similarly, when we seal a jar, the air inside cools and contracts, creating a vacuum that prevents the lid from being easily removed. These examples illustrate how 气压 is not just a scientific concept but a part of our daily experiences.In conclusion, 气压 is a vital aspect of our environment that influences weather, affects our health, and is integral to technology. By understanding 气压, we gain insights into the natural world and improve our ability to navigate it. Whether we are meteorologists predicting storms, adventurers climbing mountains, or engineers designing aircraft, knowledge of 气压 enhances our understanding and interaction with the world around us. Therefore, it is essential to appreciate the significance of 气压 in both scientific and practical contexts.

气压，或气压，是气象学和物理学中的一个基本概念。它指的是我们头顶上方的空气对地球表面施加的重量。这种无形的力量在天气模式、人类健康，甚至各种技术的运作中发挥着至关重要的作用。理解气压可以帮助我们理解大气如何运作以及它对我们日常生活的影响。首先，让我们探讨一下是什么导致了气压。大气由不同的气体组成，主要是氮气和氧气，这些气体都有质量。当我们考虑到我们头顶上方的整个空气柱时，由于重力，它会施加一个力量。这个力量就是我们测量的气压。在海平面上，气压的平均值约为1013.25 hPa（百帕斯卡），但这个数值会因海拔和天气条件而变化。气压最显著的影响之一是它对天气的影响。高气压区域通常与晴朗的天空和稳定的天气相关，而低气压系统则可能导致云、降水和风暴。气象学家使用气压读数来预测天气变化，使其成为预测的重要工具。例如，当低气压系统接近时，我们可以预期降雨甚至雷暴，而高气压系统通常带来良好的天气。此外，气压也对我们的身体产生影响。当我们攀登到更高的海拔，例如爬山时，气压会降低。这种减少可能导致高原反应，个体会出现头晕、头痛和呼吸急促等症状。了解气压如何随海拔变化对登山者和飞行员来说至关重要，因为这有助于他们为可能面临的身体挑战做好准备。除了天气和健康，气压在各种技术中也起着重要作用。例如，飞机设计用于在高空运行，在那里气压较低。工程师在设计飞机时必须考虑气压，以确保它们能够在变化的气候条件下保持升力和控制。此外，气压计等设备测量气压，并在许多应用中使用，从预测天气到校准仪器。在日常生活中，我们也在简单的活动中遇到气压。例如，当我们用吸管喝水时，我们在吸管内创造了一个低气压区域，使大气气压将液体推上去。同样，当我们密封一个罐子时，里面的空气冷却并收缩，形成真空，防止盖子被轻易打开。这些例子说明了气压不仅仅是一个科学概念，而是我们日常经历的一部分。总之，气压是我们环境中一个重要的方面，它影响天气，影响我们的健康，并且与技术密切相关。通过理解气压，我们获得了对自然世界的洞察力，并提高了我们与之互动的能力。无论我们是预测风暴的气象学家、攀登山峰的冒险者，还是设计飞机的工程师，对气压的知识增强了我们对周围世界的理解和互动。因此，欣赏气压在科学和实际上下文中的重要性是必要的。