A cumulative measure of the average amount of time an audience spends listening to a station within a daypart.
A cumulative measure of the average amount of time an audience spends listening to a station within a daypart.
对听众在某一时段内收听广播的平均时间的累计测量.
A cumulative measure of the average amount of time an audience spends listening to a station within a daypart.
对听众在某一时段内收听广播的平均时间的累计测量.