swing-wing
/ˈswɪŋwɪŋ/noun
usu. as modifier
1- an aircraft wing that can move from a right-angled to a swept-back position可变后掠翼：
swing-wing fighter bombers.
可变后掠翼战斗轰炸机。
1.1
- an aircraft with wings of this design可变后掠翼飞机。