Контрольные работы к учебнику М.Я. Бараковой, Р.И ...
Dec 12, 2018· Modern drilling equipment makes it possible to accurately measure bed thickness and determine structure of beds, faults and folds. Recording control instruments are attached to drilling rigs which allow the geologists to get reliable samples good for nearly all parameters of coal quality to be determined. ... горный комбайн. f ...