Study of the efficiency of conveyors of mining transport systems of mining complexesMaxsud. Kalandarovich Bobojanov, Oripovich Eshmurodov Ziyodulla, Muhriddin Tulkin ugli Ismoilov, Eldor Izam ugli Arziev and Gulnoza Ziyodullaevna TogaevaE3S Web Conf., 177 (2020) 03023DOI: https://doi.org/10.1051/e3sconf/202017703023