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fountain clock steered time scale
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fountain clock steered time scale
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fountain clock steered time scale
喷泉钟驾驭时标
结合喷泉钟高准确度和商品原子钟组的稳定性与可靠性,产生高准确、稳定、可靠时间频率信号的技术方案。国际计量局(BIPM)使用这种方案计算产生出国际标准时间(UTC)。
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level sensitivity
level sensor
level set
level set method
level-set method
level set solution
level shift
level shift rule
levels of domestic support in agriculture
levels of translation
level spacing
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level structure
level surface
level switching circuit
level tester
level testing instrument
level tone
level traversal
level trigger
level zero prevention
level-Ⅰ civilization
level-Ⅱ civilization
level-Ⅲ civilization
Levenberg
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