Chain index an index number derived by relating the value at any given period to the value in the previous period rather than to a fixed base.

环比指数指通过把某一时期的数值与前一时期的数值相比，而不是与固定基期相比而得出的指数。

youdao

Chain index an index number derived by relating the value at any given period to the value in the previous period rather than to a fixed base.

环比指数指通过把某一时期的数值与前一时期的数值相比，而不是与固定基期相比而得出的指数。

youdao