Aún no tenemos significados para "have vanes".
1Windmills now had vanes to change the position of the sails when the wind direction changed.
2Windmills now had vanes replacing manual labor to change the position of the sails when the wind direction changed.
3Windmills now had vanes replacing manual labor to change the position of their sails when the wind direction changed.
4The edge of the saucer- shaped object was thick and had vanes spaced about every foot, like buckets on a turbine wheel.