ارائه روشی جدید برای طراحی الگوی چال های انفجار در معادن روباز A comprehensive investigation was carried out to minimize the cost price of the rock fragmentation process including: drilling, blasting, secondary blasting and separating the large boulders (oversize rocks) while loading, until the optimized fragmentation, powder factor and ratio ...
یک پیام ارسال کرد