The paper puts forward a new high-precise noncontact measuring method combining photoelectricity and machinery in limited deep cavity to detect form and position of blind hole. System is composed of ...

A male tourist damaged Baroque painter Anton Domenico Gabbiani's portrait of Ferdinando de' Medici, Grand Prince of Tuscany, a circa 1695-1700 masterpiece on display at the Uffizi Galleries in ...

Some simple ways of hanging stones with common stone shapes and sizes ( have hole ) - Basic Guide - How to make jewelry from copper wire by Lan Anh Handmade Some people who are new to this subject ...