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| roughness coefficient (грунта) | |||
| coefficient of roughness (of rugosity) | |||
| roughness value (Andrey Truhachev) | |||
| code of roughness; roughness code; rugosity code | |||
| roughness factor (стенки трубы и т.п.) | |||
| roughness; coefficient of rugosity; rugosity factor | |||
| roughness index | |||
| friction coefficient; frictional coefficient | |||
| roughness length | |||
| coefficient of roughness | |||
C-value (В системах водяного пожаротушения учитывает износ и коррозию внутренней поверхности трубопровода на протяжении жизненного цикла системы.: In the Hazen Williams equation, which is the primary equation used to determine friction loss in a fire sprinkler system, the internal smoothness of a pipe is represented by its C Value or roughness coefficient.  phcppros.com coopernord) | |||
| roughness factor; friction factor; roughness coefficient; rugosity coefficient | |||
| coefficient of retardance | |||
| коэффициент шероховатости: 27 do fraz, 12 tematyki |