1)Arithmetic function,数字和2)Digital and analog,数字和模拟3)function of digital sum,数字和函数4)the sum of digits,数字和S（α）5)D/A circuits,数字和模拟电路6)the circumstance of digital and web,数字和网络环境
用法和例句
Under the circumstance of digital and web technology, the disseminators of musical product face puzzledom now.
