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星载铷钟
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星载铷钟
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ru atom frequency standard
星载铷钟
由铷量子部分和压控晶体振荡器组成的铷原子钟。可以作为频率标准,产生高稳定度、低漂移率的单频正弦信号。又称铷原子频标。
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relief developing machine
relief for orphans
relief for the handicapped
relief for widows
relief hole
relief image
relief management station
relief map
relief of an analytic function
relief of urban vagrants and beggars
relief printing
relief representation
Reliefs in Wang Chuzhi’s Tomb
reliefs on sarira stupa in Qixia Temple
relief stone sculpture in Northern Jiangsu Province
Relief Stone Sculptures in Nanyang
relief stone sculptures in Shandong Province
Relief Stone Sculptures in Sichuan Province
Relief Stone Sculptures in Xiaotangshan
relief stone sculptures in Xuzhou
relief stone sculptures in Yinan
Relief Stone Tomb of Han Dynasty at Anqiu
Relief Stone Tomb of Han Dynasty at Yinan
Relief Stone Tombs of Han Dynasty at Nanyang
Relief Stone Tombs of Han Dynasty at Shanbei
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