短语词组短语hair sweptback 后掠式剪发sweptback vane 后弯式叶片sweptback inlet 后掠进气口sweptback wing [航]后掠翼sweptback angle [航]后掠角sweptback hydrofoil 后掠式水翼sweptback blade 后弯叶片backswept sweptback 向后倾斜的highly sweptback wing 大后掠机翼 返回 sweptback