Mnemonics are made up of letter to represent the operation code.

助记码是由字母组成,以代表操作码.

Including background operation code database, interface code to operate.

包括后台数据库操作代码, 界面操作代码.

A program that translates a command or operation code into machine code .

把命令或操作代码转换为机器代码的程序。

The CDB contains an operation code defining the particular operation to perform and a number of operation-specific parameters.

CDB 包含了用来定义要执行的特定操作的操作代码，以及大量特定于操作的参数。