radar
简明释义
n. 雷达，无线电探测系统；（人的）直觉感知能力，（对因素或潮流等的）敏感性
【名】 （Radar）拉达尔（人名）
复 数 r a d a r s
英英释义
单词用法
雷达截面，雷达目标有效截面 | |
相控阵雷达 |
同义词
| 声呐 | 潜艇使用声呐探测水下物体。 | ||
| 定位系统 | The locating system helps navigate through the dense forest. | 定位系统帮助在茂密的森林中导航。 | |
| 探测系统 | 探测系统可以识别来袭的飞机。 |
反义词
| 隐形 | The stealth technology used in modern aircraft makes them difficult to detect. | 现代飞机使用的隐形技术使它们难以被发现。 | |
| 模糊 | In a state of obscurity, the artist's work went unnoticed for years. | 在模糊状态下，这位艺术家的作品多年无人问津。 |
例句
1.By the early hours of the following morning, on Feb 25, military radar detected an unidentified flying object 120 miles offshore approaching the coastline.
在2月25日清晨的早些时候，军用雷达探测到了距海岸线120英里的一架不明飞行物正在接近海岸线。
2.Second, we did some radar imaging from satellites over Venus.
第二，我们用金星上空的卫星做了雷达成像。
3.Why is it that my radar showed you are going 45?
为什么我的雷达显示你的速度是45？
4.Our radar began tracking the jets.
我们的雷达开始追踪那些喷气式飞机。
5.We continued tracking the plane on our radar.
我们继续用雷达追踪那架飞机。
6.Archaeologists also may locate buried remains by using such technologies as ground radar, magnetic-field recording, and metal detectors.
考古学家们还可能利用地面雷达、磁场记录和金属探测器等技术来定位被掩埋的遗骸。
7.They located the ship by radar.
他们通过雷达确定了船只的位置。
8.The plane is used for electronic jamming and radar detection.
这架飞机用于进行电子干扰和雷达探测。
9.Her talent is finally on the industry's radar.
她的才华终于引起了行业的雷达关注。
10.The military employs advanced radar systems for surveillance.
军方使用先进的雷达系统进行监视。
11.The ship used its radar to navigate through the fog.
船只使用它的雷达在雾中航行。
12.The airplane's radar detected a storm ahead.
飞机的雷达探测到了前方的风暴。
13.He was on the police's radar for his suspicious activities.
由于他的可疑活动，他被警方的雷达盯上了。
作文
The term radar (雷达) is an acronym for Radio Detection and Ranging, a technology that has revolutionized various fields, including aviation, meteorology, and even military operations. The primary function of radar is to detect the position and speed of objects, which makes it an invaluable tool in ensuring safety and efficiency in numerous applications. In this essay, I will explore the significance of radar in modern society, its working principles, and its various applications.To begin with, the basic principle of radar involves sending out radio waves and measuring the time it takes for these waves to bounce back after hitting an object. This process allows operators to determine the distance to the object as well as its speed, thanks to the Doppler effect. When the object moves, the frequency of the returned waves changes, which can be analyzed to calculate the speed of the moving object. This fundamental operation is what makes radar so effective in tracking aircraft, ships, and even weather patterns.One of the most critical applications of radar is in aviation. Air traffic control relies heavily on radar systems to monitor the location and altitude of aircraft in real-time. This ensures safe distances are maintained between planes, preventing collisions and enhancing overall air travel safety. Moreover, modern aircraft are equipped with their own radar systems, allowing pilots to navigate through adverse weather conditions by detecting storms and turbulence ahead.In addition to aviation, radar technology plays a significant role in meteorology. Weather radars are used to observe precipitation, track storm systems, and analyze atmospheric conditions. This information is crucial for issuing timely weather warnings and forecasts, helping communities prepare for severe weather events such as hurricanes or tornadoes. The ability to visualize rainfall intensity and storm movement has improved disaster preparedness and response, ultimately saving lives.Furthermore, radar is not limited to just aviation and weather monitoring; it also finds applications in military operations. Military radar systems are utilized for surveillance, target tracking, and missile guidance. These systems provide critical information about enemy movements and positions, allowing for strategic planning and execution of missions. The advancements in radar technology have significantly enhanced the capabilities of armed forces around the world, making them more effective in combat scenarios.Moreover, the use of radar extends into civilian applications as well, such as in traffic management. Some cities have implemented radar systems to monitor vehicle speeds and improve road safety. By detecting speeding vehicles, authorities can enforce traffic laws more effectively, reducing accidents and promoting safer driving behaviors.In conclusion, the impact of radar (雷达) technology on our daily lives cannot be overstated. From ensuring the safety of air travel to improving weather forecasting and enhancing military operations, radar has become an integral part of modern society. As technology continues to advance, we can expect even more innovative uses of radar in the future, further solidifying its importance in various fields. Understanding how radar works and its applications helps us appreciate the technology that keeps us safe and informed in our increasingly complex world.
术语radar（雷达）是无线电探测和测距的首字母缩略词，这项技术已经彻底改变了航空、气象甚至军事作战等多个领域。radar的主要功能是检测物体的位置和速度，这使其成为确保众多应用安全性和效率的重要工具。在这篇文章中，我将探讨radar在现代社会中的重要性、其工作原理以及其各种应用。首先，radar的基本原理是发送无线电波并测量这些波撞击物体后反弹回来的时间。这个过程使操作员能够确定物体的距离以及它的速度，这要归功于多普勒效应。当物体移动时，返回波的频率会发生变化，可以通过分析这些变化来计算移动物体的速度。这一基本操作使得radar在跟踪飞机、船只甚至天气模式方面如此有效。radar最关键的应用之一是在航空领域。空中交通管制在实时监控飞机的位置和高度时严重依赖radar系统。这确保了飞机之间保持安全距离，防止碰撞并提高整体航空旅行的安全性。此外，现代飞机配备了自己的radar系统，使飞行员能够通过检测前方的风暴和湍流来在恶劣天气条件下导航。除了航空，radar技术在气象学中也发挥着重要作用。气象雷达用于观察降水、追踪风暴系统和分析大气条件。这些信息对于及时发布天气预警和预测至关重要，帮助社区为飓风或龙卷风等严重天气事件做好准备。可视化降雨强度和风暴移动的能力改善了灾害准备和响应，最终挽救了生命。此外，radar不仅限于航空和天气监测；它还在军事行动中找到了应用。军事radar系统用于监视、目标跟踪和导弹制导。这些系统提供有关敌方运动和位置的重要信息，从而允许战略规划和任务执行。radar技术的进步显著增强了世界各国武装部队的能力，使其在战斗场景中更为有效。此外，radar的使用还扩展到民用应用，例如交通管理。一些城市已经实施radar系统来监控车辆速度并改善道路安全。通过检测超速车辆，当局可以更有效地执行交通法规，减少事故并促进更安全的驾驶行为。总之，radar（雷达）技术对我们日常生活的影响不容小觑。从确保航空旅行的安全性到改善天气预报和增强军事行动，radar已成为现代社会不可或缺的一部分。随着技术的不断进步，我们可以期待未来有更多创新的radar应用，进一步巩固其在各个领域的重要性。了解radar的工作原理及其应用有助于我们欣赏这项技术，它在我们日益复杂的世界中保护我们并让我们保持信息通畅。
