updraught

简明释义

英[ˈʌpˌdræft]美[ˈʌpˌdræft]

n. 向上排气；上升气流

adj. 向上排气的

英英释义

单词用法

同义词

反义词

例句

1.Nobody, nothing, was visible except for the occasional condor, floating on a thermal updraught and watching for the tell-tale movement of prey scurrying below.

一路上无人无物，除了偶尔看到在热浪上飞掠而过的秃鹰，搜寻着下面可能因疾行而暴露踪迹的猎物。

2.Nobody, nothing, was visible except for the occasional condor, floating on a thermal updraught and watching for the tell-tale movement of prey scurrying below.

一路上无人无物，除了偶尔看到在热浪上飞掠而过的秃鹰，搜寻着下面可能因疾行而暴露踪迹的猎物。

3.The updraught from the ocean made the coastal air feel refreshing and cool.

来自海洋的上升气流使沿海空气感觉清新而凉爽。

4.The pilot skillfully used the updraught to gain altitude without consuming extra fuel.

飞行员巧妙地利用了上升气流来提高高度，而不消耗额外的燃料。

5.Hikers often look for signs of an updraught when navigating through mountainous terrain.

徒步旅行者在穿越山区时，通常寻找上升气流的迹象。

6.During the hot summer days, the updraught created by the sun heating the ground can be quite strong.

在炎热的夏天，由太阳加热地面产生的上升气流可能相当强烈。

7.The bird soared higher thanks to the warm updraught, which helped it gain altitude effortlessly.

这只鸟借助温暖的上升气流轻松地飞得更高。

作文

The phenomenon of an updraught is often observed in various natural settings, particularly in meteorology and aviation. An updraught refers to a current of air that moves upward, which can have significant implications for weather patterns and flight dynamics. Understanding how updraughts work is crucial for both meteorologists predicting storms and pilots navigating turbulent skies. In meteorology, updraughts play a vital role in the formation of clouds and precipitation. When warm air rises, it cools and condenses, leading to cloud formation. This process can trigger thunderstorms, especially when there is a strong updraught. For instance, during summer months, the intense heat from the sun warms the ground, causing the air above it to rise rapidly. As this warm air ascends, it creates a powerful updraught that can lift moisture-laden air high into the atmosphere. As the air continues to rise, it cools, and water vapor condenses into droplets, forming cumulus clouds. If the updraught is strong enough, it can lead to severe weather events, including tornadoes. In aviation, understanding updraughts is equally important. Pilots must be aware of these currents when flying, as they can impact the aircraft's altitude and stability. During takeoff and landing, an updraught can provide additional lift, allowing the aircraft to ascend more quickly. However, if a pilot encounters a sudden updraught while cruising, it can cause turbulence, potentially leading to a bumpy ride for passengers. Therefore, pilots are trained to recognize and respond to updraughts to ensure a safe flying experience. Moreover, updraughts are not limited to natural occurrences; they can also be artificially created in controlled environments. For example, in wind tunnels used for testing aircraft designs, engineers can generate updraughts to simulate real-world flying conditions. By studying how different aircraft respond to updraughts, designers can make improvements to enhance performance and safety. In conclusion, the concept of an updraught is essential in both meteorology and aviation. It illustrates how air movement can influence weather patterns and flight dynamics. Whether it is causing thunderstorms or assisting in aircraft takeoff, updraughts are a fundamental aspect of our atmosphere that affects many facets of life. By furthering our understanding of updraughts, we can better predict weather events and improve aviation safety, ultimately benefiting society as a whole.

“上升气流”这一现象常常在各种自然环境中观察到，特别是在气象学和航空领域。“上升气流”指的是向上移动的空气流，这对天气模式和飞行动态有着重要影响。理解“上升气流”的工作原理对气象学家预测风暴和飞行员应对湍流是至关重要的。在气象学中，“上升气流”在云和降水的形成中起着至关重要的作用。当暖空气上升时，它会冷却并凝结，从而导致云的形成。这一过程可以引发雷暴，尤其是当存在强烈的“上升气流”时。例如，在夏季，阳光的强烈照射使地面升温，导致其上方的空气迅速上升。当这股暖空气上升时，会产生强大的“上升气流”，将含水分的空气高高推入大气层。随着空气的不断上升，它会冷却，水汽凝结成水滴，形成积云。如果“上升气流”足够强劲，就可能导致严重的天气事件，包括龙卷风。在航空领域，理解“上升气流”同样重要。飞行员必须意识到这些气流在飞行中的影响，因为它们会影响飞机的高度和稳定性。在起飞和着陆过程中，“上升气流”可以提供额外的升力，使飞机更快地爬升。然而，如果飞行员在巡航时遇到突发的“上升气流”，可能会造成湍流，导致乘客经历颠簸。因此，飞行员接受培训以识别和应对“上升气流”，以确保安全的飞行体验。此外，“上升气流”不仅限于自然现象；它们也可以在受控环境中被人造地创造出来。例如，在用于测试飞机设计的风洞中，工程师可以产生“上升气流”来模拟现实世界的飞行条件。通过研究不同飞机如何应对“上升气流”，设计者可以进行改进，以增强性能和安全性。总之，“上升气流”的概念在气象学和航空学中都是必不可少的。它展示了空气运动如何影响天气模式和飞行动态。无论是引发雷暴还是协助飞机起飞，“上升气流”都是我们大气中一个基本的方面，影响着生活的许多方面。通过进一步理解“上升气流”，我们可以更好地预测天气事件，提高航空安全，最终使整个社会受益。