| 单词 | 原子钟 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔atomic clock〕An extremely precise timekeeping device regulated in correspondence with a characteristic invariant frequency of an atomic or molecular system.原子钟：一种极其精确的计时系统，因其频率与原子或分子显著不变的频率相一致来控制美国传统〔coordinated universal time〕Universal time, taking into account the addition or omission of leap seconds by atomic clocks each year to compensate for changes in the rotation of the earth.世界协调时：普遍的时间。把原子钟每年润秒的增加或遗漏考虑进去，来补偿地球自转中产生的改变美国传统 |
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