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контактное кольцоstresses
el. 啮合齿轮; 接触轮; 集流环
electric. 集电环; 接触环
tech. 滑环; 导电滑环; 受电环; 接角虫环
контактное кольцо
: 30 phrases in 4 subjects
Aviation1
Electronics16
General3
Technology10