TY JOUR TI «BLACK BOX» AS A MODEL OF THE OBJECT OF RESEARCH IN CHEMICAL TECHNOLOGY KW black box model KW research object KW chemical technology. JO Modern Technologies and Scientific and Technological Progress AU Bal'chugov, A.V. AU Enhbat, R.. PY 2022 IS 2021 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»