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rubidium clock
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rubidium clock
Encyclopedia
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rubidium clock
铷钟
利用铷气泡中铷蒸气原子超精细跃迁谱线频率校正晶体振荡器频率得到的原子钟。即铷原子钟。又称铷原子频率标准、铷频标。
Astronomy
rubidium clock
铷钟
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concreteness
concrete number
concrete pavement polishing machine
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concrete with all of aggregates coming from tailings and waste rocks
concreting
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