The extensible segment in an anchor rode comprises a rubber core enclosed in a base rope along the central axis of the base rope. The packing element has an anchor portion and a sealing cover portion, each of which is expanded in order to engage and seal a surrounding string of casing or borehole. By combining cheating and scaring functions, the repelling effect is expected to be much better than those devices using only sprinkling water or ultra-sound repelling alone. The dielectric layer has a relatively low dielectric constant and good fluidity to effectively fill the spaces between patterned traces of the first circuit later. The tire has a bead reinforcing ply comprising aramid fiber reinforcing cords located in only one bead portion of the tire, with the bead reinforcing ply being adjacent to the carcass reinforcing ply. In this way a convection oven may be converted into a steam oven.