We discuss the feasibility of realizing a cold atom space clock with counter-propagating cold atoms in microgravity.
在本文中我们讨论了在空间微重力环境下利用对射冷原子团实现空间冷原子钟的可能性。
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。
When the last space shuttle readies for launch from the Kennedy Space Center, scheduled for July 8, NASA's giant digital countdown clock will be one of the most watched time pieces in the world.
美最后一架现役航天飞机“阿特兰蒂斯”号将于7月8日在肯尼迪宇航中心进行其最后的一次飞行 ，届时，NASA的巨大倒计时钟将成为最为世人瞩目的计时工具。
Engineers at the Johnson Space Center are working around the clock to troubleshoot the problem, but it could take days to fix.
为了解决这个问题，约翰逊宇航中心的工程师们正在昼夜不停地工作，但是可能要过几天才能修好。
By analysing frequency spectrum in this paper, we can understand that when NRZ code be transferred into RZ code of 1/2 mark-to-space ratio, the timing clock can be obtained at largest power.
本文通过对NRZ、RZ伪随机码序列进行频谱分析，得知当NRZ码变换成码元占空比为1/2的RZ码时，所提取出的定时时钟功率最强。
Designed to maximize your counter space and blend with virtually any decor, this under-cabinet CD clock radio is the perfect addition to any kitchen.
旨在最大限度地提高您的柜台空间，并融合了几乎所有的装饰，这下柜的CD时钟收音机是完美的除了任何厨房。
The first ones to come into wide use—glowing a space-age red—turned up in the clock radios, pocket calculators, and digital watches of the 1970s.
二十世纪七十年代，这些发着红光的二极管在太空时代被广泛使用，它出现在收音机闹钟，袖珍计算器以及电子手表上。
The difference clock delay match technology adjusts the two channel AD analog clock phase and implements the two way AD uniformly-space sampling.
差分时钟延迟匹配技术通过对两路AD的采样时钟进行相位调整，实现了两路AD的等间隔采样。
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。
A method of fabricating holographic optical element (HOE) for free-space optical clock distribution is presented.
提出了用二维全息光栅制作自由空间光学时钟分布中的全息光学元件的方法。
This paper carries out comprehensive interpretation on three inferences in the proposition of clock paradox by space-time diagrams.
利用时空图对时钟佯谬命题中的三个论断作了全面诠释。
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。
You need a personal clock, although the space on the table is becoming relatively limited at this point, so a watch is an acceptable option.
你还需要一个闹钟，尽管在这种情况下桌面可能会很紧张，但手表也是考虑的选择。
Space laser communication, which is regarded as Inter-satellite optical links can establish a round-the-clock, high-flexibility, high-agility, high-reliability information platform.
作为星际光链路的空间激光通信可建立全天候、高机动性、高灵活性、高可靠信息平台。
Space laser communication, which is regarded as Inter-satellite optical links can establish a round-the-clock, high-flexibility, high-agility, high-reliability information platform.
作为星际光链路的空间激光通信可建立全天候、高机动性、高灵活性、高可靠信息平台。
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