【摘要】 本文研究了一种新型的测量大直径及非完整圆径的专用量具 ,解决了机械加工中的测量难题。本量具测量原理简单 ,使用方便 ,测量精度适中 ,成本低 ,便于推广使用。更多还原

【Abstract】 A original specialized measuring tool used in de-integrated circle and macro-circle was studied,this measuring tool resolved measurement difficulties in mechanical machining. It has simple principle, convenience for use, moderate accuracy, low cost and has a application value.更多还原