International atomic time

简明释义

国际原子时国际原子时

英英释义

例句

1.The satellite's navigation system relies on precise measurements from International atomic time (国际原子时) to ensure accuracy.

卫星的导航系统依赖于来自国际原子时（国际原子时）的精确测量以确保准确性。

2.Researchers often compare their findings with data referenced to International atomic time (国际原子时).

研究人员经常将他们的发现与参考国际原子时（国际原子时）的数据进行比较。

3.Scientists use International atomic time (国际原子时) to synchronize experiments across different time zones.

科学家们使用国际原子时（国际原子时）来同步不同时间区域的实验。

4.The global positioning system is based on signals that are timed according to International atomic time (国际原子时).

全球定位系统基于根据国际原子时（国际原子时）定时的信号。

5.To avoid confusion, all timestamps in the database are recorded in International atomic time (国际原子时).

为了避免混淆，数据库中的所有时间戳都以国际原子时（国际原子时）记录。

作文

In our increasingly interconnected world, the concept of time has become more important than ever. One of the most precise and universally accepted methods of measuring time is known as International atomic time. This system is based on the vibrations of atoms, specifically cesium atoms, and provides a standard that is accurate to within a billionth of a second. The definition of International atomic time is crucial for various fields, including telecommunications, navigation, and scientific research.The development of International atomic time began in the mid-20th century when scientists sought to create a more reliable way to measure time compared to traditional methods, such as solar time. Solar time is based on the position of the sun in the sky, which can vary due to factors like the Earth's elliptical orbit and axial tilt. In contrast, International atomic time offers a consistent and stable reference point that is not affected by these variables.At the heart of International atomic time is the cesium atomic clock, which operates by counting the oscillations of cesium atoms as they transition between energy states. Specifically, one second is defined as the duration of 9,192,631,770 cycles of radiation corresponding to this transition. This level of precision allows for synchronization across different regions of the world, making it essential for global communication and data exchange.Moreover, International atomic time serves as the foundation for Coordinated Universal Time (UTC), which is the time standard used worldwide. UTC combines International atomic time with astronomical observations to account for variations in the Earth's rotation. Leap seconds are occasionally added to ensure that UTC remains in sync with the natural day-night cycle. This adjustment is vital for technologies that rely on precise timing, such as GPS systems and financial markets.The significance of International atomic time extends beyond practical applications; it also raises philosophical questions about the nature of time itself. As we rely more on atomic timekeeping, we must consider what it means to measure time so precisely. Is time merely a human construct, or does it exist independently of our measurements? These inquiries challenge our understanding and appreciation of time, prompting us to reflect on how we live our lives in relation to this elusive concept.In conclusion, the advent of International atomic time has revolutionized our approach to measuring time, providing an unprecedented level of accuracy and reliability. Its implications reach far and wide, affecting everything from technology to philosophy. As we continue to navigate a world that relies heavily on precise timekeeping, understanding International atomic time becomes essential for anyone engaged in modern society. The future will likely see even further advancements in atomic timekeeping, pushing the boundaries of how we perceive and utilize time in our daily lives.

在我们日益互联的世界中，时间的概念变得比以往任何时候都更加重要。最精确和普遍接受的测量时间的方法之一被称为国际原子时间。该系统基于原子的振动，特别是铯原子，并提供一个准确到十亿分之一秒的标准。国际原子时间的定义对于电信、导航和科学研究等各个领域至关重要。国际原子时间的发展始于20世纪中叶，当时科学家们寻求创造一种比传统方法（如太阳时间）更可靠的测量时间的方法。太阳时间是基于太阳在天空中的位置，这可能因地球的椭圆轨道和轴倾角等因素而变化。相比之下，国际原子时间提供了一个一致且稳定的参考点，不受这些变量的影响。国际原子时间的核心是铯原子钟，它通过计算铯原子在能量状态之间转变时的振荡次数来运作。具体来说，一秒钟被定义为对应于这一转变的辐射周期数为9,192,631,770次。这种精确程度使全球不同地区能够同步，对于全球通信和数据交换至关重要。此外，国际原子时间是协调世界时（UTC）的基础，UTC是全球使用的时间标准。UTC将国际原子时间与天文观测结合，以考虑地球自转的变化。偶尔会添加闰秒，以确保UTC与自然的昼夜循环保持同步。这一调整对于依赖精确计时的技术至关重要，例如GPS系统和金融市场。国际原子时间的重要性超越了实际应用；它还引发了关于时间本质的哲学问题。随着我们越来越依赖原子计时，我们必须考虑如此精确地测量时间意味着什么。时间仅仅是人类的构造，还是独立于我们的测量而存在？这些问题挑战了我们对时间的理解和欣赏，促使我们反思在这个难以捉摸的概念中如何生活。总之，国际原子时间的出现彻底改变了我们测量时间的方法，提供了前所未有的准确性和可靠性。它的影响广泛，涉及从技术到哲学的方方面面。随着我们继续在一个高度依赖精确计时的世界中航行，理解国际原子时间对于任何参与现代社会的人来说都变得至关重要。未来可能会看到原子计时的进一步进展，推动我们对时间的感知和利用的界限。