VB is object oriented program language, Trail chart with it, the step of solution of chart trail law can be expressed in proper order, and the machine processing technology of part can be generated.

VB是面向对象的程序语言，用它开发的程序界面友好，便于操作，用它将图表跟踪法的求解步骤一一表达出来，就能生成零件的机加工工艺。

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This paper puts forward PASCAL process blueprint, an oriented standard PASCAL programming language, diagrammatized representation for program process logic.

提出一种面向标准PASCAL语言的程序处理逻辑图形化表示法- PASCAL过程蓝图。

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Based on the tool of VB which is visual and object-oriented program language, we develop the Chain-transmission design system which is with friendly interface of user.

本系统以VB的可视化的、面向对象的编程语言为开发工具，开发了链传动设计系统。

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