A theoretical model is proposed in this paper in order to study the performance of oil-less and oil-injected twin screw air compressors. Based on this model. a computer simulation program is developed and the effects of different design parameters including rotor profile. geometric clearance. https://www.ngetikin.com/limited-value-Sapatilha-Infantil-Pampili-Bailarina-Laco-Duplo-Glitter-Prata-great-pick/