在这个原子钟的装置里,它们还是太不稳定了,不能靠自身确保时间。
At the esoteric edge of the timekeeper's craft, they are too wobbly to keep time by themselves.
因此,时间和时间的相对性可以用任何沙漏、闹钟或原子钟来测量,其中原子钟可测量出十亿分之一秒。
Thus time and time's relativity are measurable by any hourglass, alarm clock, or atomic clock that can measure a billionth of a second.
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 key to both experiments is the quantum logic atomic clock, which USES the oscillation of a single aluminium ion to maintain precise timing.
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