bearing anti-friction layer 轴承减磨层
avoiding friction layer 防磨层
boundary layer friction 附面层摩擦 ; 边界层摩擦
friction reducing layer 减摩层
turbulent boundary layer friction 紊流附面层摩擦
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N the atmospheric layer extending up to about 600 m, in which the aerodynamic effects of surface friction are appreciable 摩擦层
planetary boundary layer
Mizuno reckons that by reducing friction, keeping the flow orderly and delaying separation of the boundary layer, its new suits offer the average female swimmer 9.5% less drag than a conventional costume.
ECONOMIST: The turbulent world of swimming
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