contrail

简明释义

英[ˈkɒntreɪl]美[ˈkɑːntreɪl]

n. 凝结尾；航迹云；凝迹（飞机飞过留下的尾迹）

英英释义

单词用法

同义词

反义词

例句

1.The simple and smooth curves like the contrail of the history river.

简洁流畅的线条，如历史长河的轨迹，源远流长。

2.The numeral timing systems driven by PWM are set up for the direct current servo motor model by using the PI. and IP contrail ers respectively.

本文分别用PI控制器和IP控制器对直流伺服电机模型建立PWM驱动数字型调速系统。

3.The width of the reservoir illustrated here is approximately 8 kilometers (5 miles); a jet flying over the reservoir left a contrail midway between the shorelines.

图片中显示出的水库宽度大约为8千米（5英里），一架从上方飞过的飞机在水库两岸之间留下了一条航迹云。

4.It utilizes the characteristic of sensitivity to initialization and indeterminism to contrail, so chaotic property determines the performance of chaotic sequence.

它利用了混沌对初始条件敏感、轨迹具有不可预测性的特点来产生跳频序列。

5.In this paper a new concept of phase contrail of phase plane for higher order nonlinear control system based on isoclines method of second-order linear system is proposed.

提了基于二阶线性系统等倾线法绘制相平面原理，实现了高阶非线性控制系统相平面相轨迹的作图算法。

6.However, the intervening change of capital the contrail of the destiny.

然而，资本的介入改变了命运的轨迹。

7.After a thorough investigation, many experts now believe that the streak was a run-of-the-mill jet aircraft contrail.

经过彻底的调查，许多专家现在认为，这条轨迹是一条普通的喷气式飞机尾迹。

8.With Contrail, the central location doesn't ever know my information, or what particular users care about--it just sees encrypted stuff to pass on.

Iqbal Mohomed，微软硅谷研究院的研究员解释道“通过Contrail，中心系统绝对无法得到我的信息或特定的用户关心的内容——它仅仅能看到加密的东西通过系统”，Mohomed和几个同事负责开发新的网络系统，称之为Contrail。

9.As the airplane ascended, it left a beautiful contrail against the blue sky.

当飞机上升时，它在蓝天上留下了一道美丽的航迹云。

10.Some people believe that contrails can affect weather patterns.

一些人认为航迹云会影响天气模式。

11.The contrails from the planes can sometimes linger for hours.

飞机留下的航迹云有时会持续几个小时。

12.Scientists study contrails to understand their impact on climate change.

科学家研究航迹云以了解其对气候变化的影响。

13.The sky was filled with long, white contrails, marking the path of the jet planes overhead.

天空中布满了长长的白色航迹云，标记着头顶喷气飞机的飞行轨迹。

作文

As I gazed up at the clear blue sky on a sunny afternoon, I noticed long white streaks cutting across the horizon. These streaks were not just random clouds; they were the result of aircraft flying high above us, leaving behind what is known as contrail. A contrail (凝结尾迹) is a visible trail of condensed water vapor that forms in the wake of an aircraft at high altitudes. It occurs when the hot, humid air from the engine exhaust mixes with the colder surrounding air, causing the moisture to freeze into tiny ice crystals. The phenomenon of contrails has fascinated both scientists and the general public alike. They can vary in appearance, from short and wispy lines to long, thick bands that linger in the atmosphere for hours. The duration and persistence of a contrail depend on various factors, including atmospheric conditions such as humidity and temperature. On days with high humidity, contrails can persist and spread out, contributing to cloud formation and influencing local weather patterns. While contrails may seem like a mere byproduct of air travel, they have significant implications for our environment. Studies have shown that persistent contrails can affect the Earth’s climate. They trap heat in the atmosphere, potentially leading to a warming effect, similar to that of greenhouse gases. This has raised concerns among environmentalists, prompting discussions about the impact of aviation on climate change. Moreover, the increase in air traffic over the years has led to a rise in the number of contrails produced. With more flights taking off every day, the skies are becoming increasingly populated with these white trails. Some researchers argue that this could exacerbate global warming, as the cumulative effect of numerous contrails can alter the Earth’s radiative balance. Despite their environmental implications, contrails also hold a certain beauty and intrigue. For many, they are a reminder of human ingenuity and the ability to conquer the skies. Photographers often seek out these trails to capture stunning images of the interplay between air travel and nature. The sight of a sunset reflecting off a contrail can be breathtaking, creating a canvas of colors that enriches the evening sky. In conclusion, contrails are more than just streaks of white in the sky; they are a complex interplay of science, technology, and environmental impact. Understanding what contrails are and their effects on our planet is crucial as we navigate the future of aviation and its role in climate change. As we continue to travel through the skies, it is essential to consider the consequences of our actions and strive for more sustainable practices in air travel. The next time you look up and see a contrail, take a moment to appreciate its beauty, while also reflecting on the broader implications it carries for our world.

当我在一个阳光明媚的下午仰望清澈的蓝天时，我注意到长长的白色条纹划过地平线。这些条纹并不是随机的云彩；它们是飞机在高空飞行后留下的，被称为contrail的痕迹。contrail（凝结尾迹）是指在高空飞行的飞机尾部形成的可见水蒸气凝结轨迹。当引擎排放的热而潮湿的空气与周围较冷的空气混合时，水分会凝结成微小的冰晶，从而形成contrail。Contrails现象吸引了科学家和公众的关注。它们的外观各异，从短而细的线条到长而厚的带状物，甚至可以在大气中持续数小时。Contrail的持续时间和持久性取决于多种因素，包括温度和湿度等大气条件。在湿度较高的日子里，contrail可以持续存在并扩散，促成云的形成并影响当地的天气模式。尽管contrails似乎只是航空旅行的副产品，但它们对环境有着重要的影响。研究表明，持久的contrails可能会影响地球的气候。它们在大气中捕获热量，可能导致与温室气体相似的温暖效应。这引发了环保主义者的担忧，促使人们讨论航空对气候变化的影响。此外，近年来航空交通的增加导致生产的contrails数量上升。随着每天更多航班的起飞，天空中越来越多地出现这些白色轨迹。一些研究人员认为，这可能加剧全球变暖，因为大量contrails的累积效应可能会改变地球的辐射平衡。尽管有环境影响，contrails也具有一定的美感和魅力。对于许多人来说，它们是人类智慧的象征，提醒我们征服天空的能力。摄影师们常常寻找这些轨迹，以捕捉航空旅行与自然之间的美丽图像。夕阳映照在contrail上的景象令人叹为观止，创造出丰富的色彩画布，装点了傍晚的天空。总之，contrails不仅仅是天空中的白色条纹；它们是科学、技术和环境影响的复杂交织。理解contrails是什么以及它们对我们星球的影响至关重要，因为我们在航空和气候变化的未来中航行。随着我们继续在天空中旅行，考虑我们行为的后果并努力在航空旅行中采取更可持续的做法是至关重要的。下次你抬头看到contrail时，花一点时间欣赏它的美，同时反思它对我们世界的更广泛影响。