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单词 index number
释义 index number
[`in´deks ´nǝm·bǝr]
STATISTICS
A number indicating change in magnitude, as of cost or of volume of production, as compared with the magnitude at a specified time, usually taken as 100; for example, if production volume in 1970 was two times as much as the volume in 1950 (taken as 100), its index number is 200.
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