مريم شاهرخي·۷ ماه پیشWhat is mining?Mining is an essential process that involves extracting valuable minerals or other geological materials from the earth. This process has ex…
مريم شاهرخي·۱۰ ماه پیشPreparation of bitumen from heavy crude oilThe type of oil is determined by its density. If the oil has a high relative density, it is referred to as heavy crude oil, while oil with…
