邮电业务总量按2000年不变价格计算。

The business volume of post and telecommunications is calculated at 2000 constant prices.

实际国内生产总值-的总和价值生产的商品和服务在一个国家和价值不变价格计算，校正一些基准年。

Real gross domestic product - The sum value of goods and services produced in a country and valued at constant prices, calibrated from some base year.