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重骨料
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重骨料
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骨料
释
heavy aggregate
重骨料
表观密度在3000~4000千克/米3,堆积密度大于2080千克/米3的骨料。主要有铁、磁铁矿、砂铁、褐铁矿、赤铁矿、重晶石和烧结球等。
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fourth sound
Fourth Summit of the Conference on Interaction and Confidence Building Measures in Asia
fourth term of proportion
fourth wall
four tonal categories
four tonal categories of the old Chinese
four tones and eight kinds of phonological errors
Four Tones and Rhymes of Ancient Chinese
four towns of Ming and Qing dynasties
four transverse crease
four travelers problem
Four Treasures of the Study
four tube blasting
four-valued logic
four-valuedness
four-vector
four-vector norm
four vector of current density
four-vector of current density
four vector of induction current density
four-vector of induction current density
four vector of Lorentz force density
four-vector of Lorentz force density
four vector potential
four-vector potential
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