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knuckle radius强调
建造 радиус изгиба (Wiana)
机械工程 радиус отбортовки (отбортованного днища сосуда Анастасия Леонова)
生产 угловой радиус (днища сосуда; Knuckle Radius – Also known as corner radius. It is the formed radius of the head which transitions the dish portion to the straight flange. Alex_UmABC)