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specialization ratio
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specialization ratio
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专业化率
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specialization ratio
专业化率
某地区某工业部门在全国该工业部门的比重与该地区整个工业占全国工业比重之比的区域化专业指标。是长期以来得到广泛应用的衡量地区专业化的重要指标。又称区位商。
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Evacuated tube transport
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