They made four-molecule-long wires - the smallest superconducting structure yet reported.
他们制作了四个分子长的金属线——目前有报道最小的超导体。
2
Five of the nine smaller tubes are straight and contain elevators, while the other four are more crooked and carry the ducts and wires.
九个小管中的五个是直的，里面有升降机，然而其他四个弯曲的管子里面有管道和电线。
3
Four, and then the (AC) region of the L, N access to the 220V power supply (2.5 of copper core wires), such as the installation position is low, the best grounding wire.