M., Benmoussa1,F., Inel22023-05-292023-05-292020-05-01M. Benmoussa1, F. Inel2.STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR STUDY AND DETERMINATION OF RATIONAL OPERATING RATIO FOR. Journal of Fundamental and sciences. vol.12, no 2. May 2020. Faculty of exact sciences. university of el oued. [visited in 01/03/2020. available from [copy the link here]http://dspace.univ-eloued.dz/handle/123456789/24800articalthis paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by In this paper, we have the percussive rotational drilling regime that is determined by combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, combination of the rotational speed tool, the the axial forceaxial force axial force axial forceaxial force applied on the rockapplied on the rock applied on the rockapplied on the rock applied on the rock applied on the rock applied on the rock; 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