The program primarily consists of two parts : first is computer - aided design of hydraulic cylinder . assembly and component drawings of all kinds of standard or nonstandard item can be drawn automatically 本程序主要由两部分组成:一是液压缸计算机辅助设计部分,它能够实现各种标准或非标准液压缸的装配图和零件图的自动绘制。