masers

简明释义

英[ˈmeɪzəz]美[ˈmeɪzərz]

n. [电子]微波激射器；脉塞；[电子]量子放大器；分子增幅器（maser 的复数形式）

英英释义

单词用法

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例句

1.The other water masers of vibrational ground state and the emissions and absorptions of vibrational excitation states became detectable due to the advance of science and technology.

由于科学技术的进步，振动基态的一些其他水脉泽，振动激发态的一些发射线与吸收线已变得可以探测。

2.The most likely and obvious radiative connection between the infrared and the masers is through the mechanism of radiative pumping of the maser.

红外辐射及微波激射间最可能而又明显的辐射联系是通过微波激射的辐射抽运机制实现的。

3.The electromagnetic instability of the system was analyzed, and compared with other electron cyclotron masers.

论证和分析了该系统电磁不稳定性的存在及其特征，并与其它电子回旋脉塞进行了比较。

4.Recently developed atomic hydrogen masers have achieved stability well into the 10-16 domain for averaging time intervals beyond 1,000 SEC.

最近研制的氢原子钟，对于超过1,000秒的平均时间间隔，其稳定度好到10 ~ (- 16)。

5.This paper describes the mechanical and electronics design philosophy of the new maser, and comparisons with previous masers made at Shanghai Observatory are detailed.

本文将描述它的机械和电子学设计特点，并与上海天文台早期制造的氢钟进行了详细的比较。

6.In the kinetics of electron cyclotron masers, the method based on the local field expansion in the guiding center frame has many advantages.

在电子回旋脉塞动力学理论中，以电子回旋中心坐标系中场的局部展开为基础的方法有很大的优点。

7.The other water masers of vibrational ground state and the emissions and absorptions of vibrational excitation states became detectable due to the advance of science and technology.

由于科学技术的进步，振动基态的一些其他水脉泽，振动激发态的一些发射线与吸收线已变得可以探测。

8.Looking at very distant masers or galaxies is like looking at a photograph taken ages ago.

观察非常遥远的脉泽或者星系就像在观察很多年以前的照片一样。

9.It is well known that hydrogen masers are characterized by a very good frequency stability.

氢激射器本身可以提供频率极稳定的微波信号，但由于所提供的信号是非整数频率。

10.By observing the same regions at different times of year, Reid and colleagues were able to discern slight changes in the masers' position, which revealed their distance from Earth.

通过在一年的不同时间里观测同一区域，Reid和他的同事可以辨别出脉泽所在位置的微小变化，而这种变化显示了它们到地球的距离。

11.The new communication system relies on masers 微波放大器 to transmit signals over long distances without loss.

新的通信系统依赖于masers微波放大器以无损失地传输信号到远距离。

12.The development of space-based masers 微波放大器 could revolutionize satellite communications.

基于太空的masers微波放大器的发展可能会彻底改变卫星通信。

13.Researchers are exploring how masers 微波放大器 can improve radar technology.

研究人员正在探索如何利用masers微波放大器来改善雷达技术。

14.In astronomy, masers 微波放大器 are used to study the properties of distant galaxies.

在天文学中，masers微波放大器用于研究遥远星系的特性。

15.Scientists are using masers 微波放大器 to enhance the precision of their measurements in quantum physics.

科学家们正在使用masers微波放大器来提高他们在量子物理中测量的精确度。

作文

In the realm of modern physics and engineering, the term masers (微波放大器) holds significant importance. A maser is a device that amplifies microwave radiation through stimulated emission, much like how a laser amplifies light. The concept of masers emerged in the late 20th century, when scientists sought to explore the potential of microwave frequencies for various applications. These devices have since become crucial in fields such as telecommunications, astronomy, and even medical technology.The operation of a maser relies on a principle known as stimulated emission, which was first described by Albert Einstein in 1917. In a typical maser, atoms or molecules are excited to a higher energy state, and when they return to their ground state, they emit photons. If these emitted photons encounter other excited atoms, they can stimulate the emission of additional photons, leading to an amplification process. This mechanism allows masers to produce coherent microwave radiation, which is essential for many high-precision applications.One of the most notable applications of masers is in the field of telecommunications. Microwave signals are widely used for transmitting information over long distances, and masers play a vital role in enhancing the strength and clarity of these signals. By amplifying weak microwave signals, masers ensure that data can be transmitted efficiently and with minimal loss of quality. This has revolutionized how we communicate, enabling faster internet speeds and more reliable connections.In astronomy, masers serve as powerful tools for studying cosmic phenomena. For instance, astrophysicists use masers to observe the molecular clouds in space, which are often the birthplaces of stars. The presence of masers in these regions indicates the conditions necessary for star formation, providing valuable insights into the processes that shape our universe. Additionally, masers can be used to measure astronomical distances with remarkable accuracy, further advancing our understanding of the cosmos.Medical technology has also benefited from the advancements in maser technology. Researchers are exploring the use of masers in various therapeutic applications, including targeted drug delivery and cancer treatment. The precise control over microwave radiation provided by masers could lead to breakthroughs in non-invasive medical procedures, improving patient outcomes significantly.Despite their many advantages, the development of masers is not without challenges. One of the main difficulties lies in maintaining the stability and efficiency of these devices. Researchers are continually working on innovative designs and materials to enhance the performance of masers. As technology advances, the potential applications of masers continue to expand, promising exciting developments in various scientific fields.In conclusion, masers represent a fascinating intersection of physics and technology, with far-reaching implications for communication, astronomy, and medicine. Their ability to amplify microwave radiation through stimulated emission has opened up new avenues for research and innovation. As we continue to explore the capabilities of masers, it is clear that they will remain a vital component of scientific progress and technological advancement in the years to come.

在现代物理和工程领域，术语masers（微波放大器）具有重要意义。maser是一种通过受激发射放大微波辐射的设备，类似于激光放大光的方式。masers的概念出现在20世纪晚期，当时科学家们希望探索微波频率在各种应用中的潜力。这些设备自那时以来在电信、天文学甚至医疗技术等领域变得至关重要。maser的操作依赖于一种称为受激发射的原理，该原理首次由阿尔伯特·爱因斯坦于1917年描述。在典型的maser中，原子或分子被激发到更高的能量状态，当它们返回到基态时，会发射光子。如果这些发射的光子遇到其他激发的原子，它们可以刺激额外光子的发射，从而导致放大过程。这一机制使得masers能够产生相干的微波辐射，这对于许多高精度应用至关重要。masers最显著的应用之一是在电信领域。微波信号广泛用于长距离信息传输，而masers在增强这些信号的强度和清晰度方面发挥着至关重要的作用。通过放大微弱的微波信号，masers确保数据能够高效传输，并且质量损失最小。这彻底改变了我们的通信方式，使互联网速度更快，连接更可靠。在天文学中，masers作为研究宇宙现象的强大工具。例如，天体物理学家使用masers观察太空中的分子云，这些云常常是恒星的诞生地。这些区域中masers的存在表明了恒星形成所需的条件，为我们提供了塑造宇宙过程的宝贵见解。此外，masers可用于以惊人的精确度测量天文距离，进一步推进我们对宇宙的理解。医疗技术也从maser技术的进步中受益。研究人员正在探索在各种治疗应用中使用masers，包括靶向药物传递和癌症治疗。masers提供的微波辐射的精确控制可能会导致非侵入性医疗程序的突破，显著改善患者的治疗效果。尽管有许多优点，但masers的发展并非没有挑战。主要困难之一在于保持这些设备的稳定性和效率。研究人员不断致力于创新设计和材料，以提高masers的性能。随着技术的进步，masers的潜在应用继续扩展，承诺在各个科学领域带来令人兴奋的发展。总之，masers代表了物理学和技术的迷人交汇点，对通信、天文学和医学具有深远的影响。它们通过受激发射放大微波辐射的能力为研究和创新开辟了新的途径。随着我们继续探索masers的能力，显然它们将继续成为未来科学进步和技术发展的重要组成部分。