首页>
外国专利>
propulsion system consisting of a propeller (or more) of the blades are distributed radially with respect to the axis of rotation, dissimilar and move between them in the axial direction.for the use of ships and vessels in general.
propulsion system consisting of a propeller (or more) of the blades are distributed radially with respect to the axis of rotation, dissimilar and move between them in the axial direction.for the use of ships and vessels in general.