短語詞組短語vortex x pair 渦對low frequency vortex pair 渦對Counter -rotating Vortex Pair 渦對;對;反向渦旋對co -rotating vortex pair 同向旋轉(zhuǎn)渦對Delta Winglet Pair vortex generators 三角小翼式渦產(chǎn)生器 返回 vortex pair