Cylindrical surface, conical surface and hyperboloid surface of revolution. According to the relevant public information inquired, the straight surface of revolution: one kind of revolving surface takes a straight line as the generatrix and the other kind of straight line as the axis. The surface formed by the rotation of the generatrix around the axis is called a straight surface of revolution, and the cylindrical surface, conical surface and hyperboloid of a leaf meet this definition, so it is a straight surface of revolution.