| 摘要 |
The suspended beam is in two parts. Above the bar standing on legs, a U-shaped profile section is suspended so as to be vertically resilient and (that is to say two degrees of freedom) so as to be tiltable transversely perpendicular to the longitudinal direction, but so as to be secured against lateral movements, against tilting about the longitudinal axis and against local buckling, for the purpose of protecting the gymnast from accidents. <IMAGE>
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