To imitate the function of(another system), as by modifications to hardware or software that allow the imitating system to accept the same data, execute the same programs, and achieve the same results as the imitated system.

• 仿真，仿效模拟（另一系统）的功能，通过修改硬件或软件使得仿真系统与被仿真系统接受同样的数据，执行同样的程序，并且得到同样的结果