| 摘要 |
The invention relates to a surface of a body exposed to circumfluent fluid with elevations protruding from the base surface. In order to design the surface of a body exposed to circumfluent fluid with elevations protruding from the base service with an even more favorable flow, it is provided that when the surface is viewed from the top the elevations are bordered in each case by two boundary lines of which the one boundary line is longer and possesses a greater curvature than the other boundary line so that the cross-section area of an aerofoil is produced.
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