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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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lattice parameter; lattice constant
lattice path
lattice permutation
lattice plane
lattice plane net
lattice point
lattice point formula
lattice point function
lattice point method
lattice point problem
lattice [point] row
lattice point row
lattice polarity
lattice polarization
lattice polygon
lattice polynomial
lattice polytope
lattice preferred orientation
lattice-preferred orientation diagram
lattice-preserving mapping
lattice problem
lattice QCD at finite temperature and density
lattice reduction
lattice reference frame
lattice relaxation
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