Scientists developed the first atomic clock in 1949.
科学家们于1949年制作了第一台原子钟。
The atomic clock is accurate to one millionth of a second.
原子钟计时可以精确到百万分之一秒。
The random variation in atomic clock noise is presented at small scale.
在小尺度上，原子钟噪声是完全随机的变化特征。
It is alternative solution to synchronizing with atomic clock using NTP and Internet.
这是替代解决办法，以同步与原子钟使用的NTP和互联网。
It will update your system clock time, synchronizing it with atomic clocks through the Internet.
该软件将更新你的系统时间，通过因特网使用原子时钟同步你的系统时间。
NASA plans to test a full-size solar sail for chemical-free propulsion and a deep space atomic clock.
此外，美国国家航空航天局（下文简称NASA）还计划测试一个完整尺寸的太阳帆，为航天器提供绿色推进能源，以及测试一个深空原子钟。
His discoveries, which won him the Nobel prize, led to the caesium atomic clock and the hydrogen maser.
这一获得诺贝尔奖的发现产生了铯原子钟和氢微波激射器。
One such atomic clock is so accurate that it will probably lose no more than a second in 3,000 years.
一座这样的原子钟精确度很高，在3,000年期间也不会慢掉一秒钟。
Through analysis, technical requirements for VCXO used in the cesium atomic clock are put forward in this paper.
本文从分析压控晶体振荡器的技术指标对铯束频标的影响出发，提出对它的技术要求。
The standard frequency in television signals is a signal with high stability and accuracy, controlled by the atomic clock.
电视信号中的标准频率信号是受原子钟控制的高稳定度、高准确度的信号。
At the US Naval Observatory in Washington, its newest atomic clock is getting a climate-controlled room of its own for the first time.
在位于华盛顿的美国海军天文台，这里最新的原子钟首次得到了一个拥有空调的专用房间。
By synchronizing one of the optical teeth with the clock laser, atomic clockmakers force the other teeth to become equally stable.
通过将激光和光梳某个梳齿同步，制作者可以使得其他梳齿变得同样稳定。
A time keeping system consists of atomic clock assembly, measuring and comparing system and computation of atomic time scale, etc.
守时系统是一种需要连续、可靠运转的复杂系统，包括守时钟组、比对测量系统、原子时归算等多个环节。
The key to both experiments is the quantum logic atomic clock, which USES the oscillation of a single aluminium ion to maintain precise timing.
两个实验的重点是量子铝原子钟，它利用单一铝离子的震荡来精准测量时间的流逝。
The multiple coherent interactions of atoms and oscillatory microwave field play an important role in the potential accuracy of atomic clock.
原子频标中微波场与原子的作用方式是决定其潜在精度的主要因素之一。
This involves taking two measurements from different parts of a very broad comb and comparing the results to precisely known frequencies of an atomic clock.
这是通过，用一个非常宽的频率梳的两个部分测量一个已知的精确的原子钟频率，然后比较两者测量的结果来实现的。
Another showed that an atomic clock sped up when launched on a rocket 10,000 kilometres above Earth's surface, where the planet's gravitational field is weaker.
另一项研究显示，当把原子钟用于火箭，发射到离地面1万公里以上的高空时，由于那里的地球引力场较弱，而略微有所加快。
Rubidium atomic clock is used for the time reference signal in the system, by which the user can get the positioning information without sending any signal.
该系统用高稳定度铷钟作为时间基准信号，实现了无源导航定位功能。
Only in the last 30 years have they gotten smarter with the introduction of things like calculators and, more recently, chronographs and satellites tied to the atomic clock.
只是在过去的30年间，计算器的引入才使手表才变得智能化；而也仅仅是最近的几年中，计时器和卫星技术才运用在了原子钟表里。
If PARCS is launched in late 2005 as expected, it may be joined on the space station by a device from the European space Agency called ACES (Atomic Clock Ensemble in space).
如果PARCS如预期在2005年末升空，随后加入国际太空站的，可能还有欧洲太空总署一个称为“太空原子钟”(aces)的装置。
The loop design of the passive atomic clock is discussed to accomplish the transfer of the frequency accuracy and stability from the atomic resonance to the locked oscillator.
本文就被动型原子钟的环路设计讨论了原子谐振器频率准确度和稳定向锁定晶振的传递问题。
In the proposed schemes, the redundant configuration of grandmaster clock using Beidou navigation satellite system, GPS (Global Positioning system) and atomic clock is discussed.
在应用方案中，讨论了利用北斗卫星定位系统、全球卫星定位系统(GPS)和原子时钟构建最高级时钟的冗余配置方案。
Based on a numerical model cesium atomic clock designed before, the influence of atomic velocity distribution consisting of two peaks and three peaks has been studied respectively.
基于已建立的小型铯原子钟计算机模型系统，研究了铯束原子速度为双峰分布和三峰分布对原子钟微波频谱的影响。
The synergetic method mainly includes: noise-separating method based on time sequence model of atomic clock and malfunction - separating and positioning method based on malfunction-tree.
该方法的内容包括：原子钟一阶模型的噪声分离方法和故障树的故障分离、故障定位方法。
The resonance frequency shift in the space atomic clock prototype is analyzed in the paper. The preliminary results show that a higher accuracy is obtainable in the proposed new prototype.
在分析作者建议的一种新型空间原子钟原型中原子与场作用特点的基础上，探讨几种因素对该原型中原子跃迁频率的影响及相应的减少频移措施。
The atomic clock designed according to the method has simple structure and omits a locking circuit of the traditional atomic clock, thereby improving the adaptability for the external environment.
按照上述方法设计的原子钟结构简单，省去了传统原子钟的锁定电路，提高了对外部环境的适应性。
This paper introduces a user terminal equipment for the double-satellite positioning system. The terminal, named continuous navigation passive positioning system, is based on Rubidium atomic clock.
介绍了一种基于铷钟的双星系统用户终端机——连续导航无源双星定位系统。
The Doomsday Clock isn't a clock and it doesn't keep time. It's a metaphor introduced by The Bulletin of the Atomic Scientists to gauge public safety.
末日时钟并不是真正的计时钟表，而是一面虚构的钟面，由芝加哥大学的《原子科学家公报》杂志于1947年设立，以标示出世界受核武威胁的程度。
The Doomsday Clock isn't a clock and it doesn't keep time. It's a metaphor introduced by The Bulletin of the Atomic Scientists to gauge public safety.
末日时钟并不是真正的计时钟表，而是一面虚构的钟面，由芝加哥大学的《原子科学家公报》杂志于1947年设立，以标示出世界受核武威胁的程度。
应用推荐