пороговая сила
Минимальная сила, при которой начинается разрушение пород зубьями шарошки
[http://slovarionline.ru/anglo_russkiy_slovar_neftegazovoy_promyishlennosti/]
Англо-русский словарь нормативно-технической терминологии. academic.ru. 2015.
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