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。
The house layout design system which is customization-oriented provides user the tool and environment to design house layout.
户型设计与编辑生成系统为用户提供了进行户型设计的工具和环境。
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