It is based on the translation from SDL(Specification and Description Language re- commended by CCITT)into GPSS(General Purpose Simulation System).

• 这种方法的特点是通过功能说明和描述语言 SDL 到通用模拟语言 GPSS 的翻译；直接将通信规程和通信网的描述文件转换成模拟程序.