工程图学中知“二”求“三”问题唯一性与否的判断原则

THE PRINCIPLE OF DECISION ON UNIQUENESS OR NOT IN “GIVEN TWO,DERIVE THE THIRD” OF ENGINEERING DRAWING

:给出了知 二"求 三"问题唯一性与否的判断原则,并就点、线、面、体作了具体讨论。

This paper presents the Principle of Decision on Uniqueness or Not in 'Given Two,Derive the Third' of Engineering Drawing,Detailed descussion is made in accordance with the point,the line,the surface and the volume.$$$$