混合存款 meaning in Chinese

mixed deposit

I am not sure about the exact mix of deposits , so i don ' t know what the interest spread is , but the spread between one - year deposits and one - year loans has narrowed by 9 basis points ( i think altogether it has narrowed by 27 basis points this year , but i have to check )
我并不很确定精确的混合存款额（是多少），所以我不知道利率差额是多少；但是一年期存款与一年期贷款的差额已经缩短了9个基本点（我认为今年总共已经缩短了27个基本点，不过我需要核实）。