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formation skydiving
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formation skydiving
Encyclopedia
教育学
航空运动
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formation skydiving
造型跳伞
由2名以上的跳伞员,乘一架或数架飞机,于同一航线上跳下,在开伞前的自由坠落中,借助空气动力作用相互靠拢,彼此拉住手、臂或腿,组成各种规定图案的跳伞项目。
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orbit resonance
orbitron
orbit-rotation resonance
orbit space
orbit stability
orbit-stable limit cycle
orbit-superposition method
orbit theory
orbit, trajectory
orbit transfer
orbit type
orcein
orcelite
orchard establishment
orchardgrass rust
orchard microclimate
orchard of fruit germplasm resources
orchard planning
orchard-planting problem
orchard problem
orchard vegetation
orchard visibility problem
orchard with sod cultivation
orchestra
orchestral music interlude in an opera
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