فهرس المقالات Optical Glass BK7 حرية الوصول المقاله صفحة الملخص نص كامل 1 - Experimental Investigation of Subsurface Damages Made by Cup Grinding and Lapping Process of Optical Glass BK7 in Ductile Mode Vahid Barahimi Masoud Farahnakian حرية الوصول المقاله صفحة الملخص نص كامل 2 - Experimental Investigation of the Surface Roughness in Grinding of BK7 Optical Glass in Brittle Mode Vahid Barahimi Masoud Farahnakian