Geometry optimization calculations indicate that all the six fluorinated ethylene cations have planar structures, in contrast with the non planar D2 structure of the ethylene cation.
结果表明，与具有非平面结构的乙烯阳离子不同，六种氟代乙烯阳离子都只具有平面结构；
Through numerous optimization calculations and comparisons, it is concluded that the deterministic method is more effective for the optimization design computation of the airfoil and the wing.
提出了二维混合网格的生成方法，完成了在此类网格中的优化设计计算。
Through numerous optimization calculations and comparisons, it is concluded that the deterministic method is more effective for the optimization design computation of the airfoil and the wing.
提出了二维混合网格的生成方法，完成了在此类网格中的优化设计计算。
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