关于国标中剖视图内容不断完善的分析与建议

运用逻辑学关于“划分”、“概念间的关系”和“下定义”的有关原理,分析了近30年中国家标准中关于剖视图分类演变的进程,对剖视图的分类趋向科学性予以肯定,指出近代国标中关于剖视图分类存在的问题。在此基础上,阐明符合逻辑学的剖视图定义结构,并对剖视图标注中剖切符号的图示提出了改进建议。使得各类剖视图的定义更确切、科学,表达更方便、明了,绘图更容易。

Analysis and Suggestion on Perfection of National Standard about Section

Applying viewpoints of logic about Classification,Relation between Conceptions,and Definition,some section issues in National Standard are discussed such as the evolution,the scientificalness,and the shortage of section classification latterly.In result,it is proposed for a logic definition mode of section,and suggest for illustration of section symbols.Thus,all sorts of section definition will be more exact and scientific.It is more convenient and clearer to classify and to illustrate,and easer to draw than ever.