![foldable造句怎么写]( "foldable造句怎么写")
- Theplaypenincludesanenvelopingpartandafoldablebedstead.Theenvelopingpartcoversaroundthefoldablebedstead.Withthismethodthestructuralanalysisofstaticandkinematicindeterminatefoldablesystemsisconductedandthekinematicbifurcationpointsofpin-connectedfolda...
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