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stratigraphic unit
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stratigraphic unit
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stratigraphic unit
地层单位
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four-figure integer
four flow conjecture
four-flow conjecture
fourfold
fourfold axis
fourfold classification
fourfold knot
fourfold [symmetry] axis
fourfold symmetry axis
fourfold table
four-force
four forms
four forms of law of the Song Dynasty
four fractions
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Four Freedoms
four-frequency differential laser gyroscope
four fundamental keys
four fundamental operations
four fundamental rules
Four Garrisons of Anxi Protectorate
Four-gate Boxing
Four-gate Pagoda
Four Generations
Four Generations under One Roof
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