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| Russian | English |
| радиус монтажной фаски подшипника | bearing bevel radius (Yeldar Azanbayev) |
| радиус сферы | crown radius (днища сосуда Alex_UmABC) |
| угловой радиус | knuckle radius (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) |
| электрическое зондирование с большим радиусом исследования | deep resistivity probe (Yeldar Azanbayev) |