柯林斯詞典index number 1. N a statistic indicating the relative change occurring in each successive period of time in the price, volume, or value of a commodity or in a general economic variable, such as the price level, national income, or gross output, with reference to a previous base period conventionally given the number 100 指數(shù); 反映一段時間內(nèi)特定商品價格、國內(nèi)收入等經(jīng)濟變量相對前一堦段的變化[statistics] 返回 index number