Extremely low thermal conductivity direct current line forming method and direct currentline for quantum computer

An extremely low thermal conductivity direct current line forming method, comprising:

• (A) selecting a guide wire made of a titanium alloy material, wrapping the outside of the guide wire with an insulating paint layer to form a wire, and winding the wire on a wire shaft;
• (B) selecting two wire shafts wound with wires, pulling out the wires from the wire shafts, respectively, and securing wire ends of the two wires on a first wire collecting shaft;
• (C) the two wire shafts rotating around a midpoint of a line connecting the two wire shafts, making the two wires twisted;
• (D) a first wire collecting shaft rotating to collect and wind the two twisted wires on the first wire collecting shaft, forming a small wire pair after the two wires are twisted and collected;
• (E) pulling out the two small wire pairs from the first wire collecting shaft, securing the wire ends of the small wire pairs on a second wire collecting shaft, the two first wire collecting shafts rotating around a midpoint of a line connecting the two first wire collecting shafts, collecting and winding the two twisted small wire pairs on the second wire collecting shaft, and forming a large wire pair after the two small wire pairs are twisted and collected;
• (F) pulling out the two large wire pairs from the second wire collecting shaft, securing the wire ends of the large wire pairs on a third wire collecting shaft, the two second wire collecting shafts rotating around a midpoint of a line connecting the two second wire collecting shafts, collecting and winding the two twisted large wire pairs on the third wire collecting shaft, and forming a wire set after the two large wire pairs are twisted and collected;
• (G) pulling out the three wire sets from the third wire collecting shaft, securing the wire ends of the wire sets, the three third wire collecting shafts being arranged in a triangle and rotating around a center point of the triangle, collecting and twisting the three wire sets, and forming a wire core after the wire sets are twisted and collected;
• (H) weaving an outer sheath made of a non-metallic material outside the wire core to form a direct current line.