00729naa#a2200181#i#450# EN\\bibl\3919 20240624070125.1 20200413b2020####ek#y0engy0150####ca RU INVESTIGATION OF THE TANGENT OF THE DIELECTRIC LOSS ANGLE OF POLYURETHANE COMPOSITE MATERIALS Conference article/thesis Bryansk Bryansk State Technical University 2020 4 с. Conference article/thesis local Инженерное дело. Техника в целом. Транспорт. 62 Технология машиностроения. 55.13 grnti Pesterova Liliya Fedorovna Shakirova Ol'ga Grigor'evna bstu.editorum.ru