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fountain clock steered time scale
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fountain clock steered time scale
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工学
时标
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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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seismic phase
seismic physical modeling
seismic precaution for pipeline
seismic protection assessment for collection
seismic protection measures for collection
seismic protection of collection
Seismic reflection method
seismic reflection survey
seismic reflection (wave) method
seismic refraction
seismic refraction method
seismic regionalization
seismic resistance of bridge structure
seismic response analysis of structures
seismic response spectrum of acceleration
seismic scattering profile survey instrument
Seismic section
seismic sedimentology
seismic sensing
seismic signal
seismic signal resolution
seismic source
seismic spatial resolution
seismic spectral decomposition
seismic stability of electric equipment
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