aerial views of superconducting cable project on december 22, 2021 in shanghai, china. a high-capacity superconducting power line with world-leading... - 超導體 個影片檔及 b 捲影像00:15
graphene tube structure technology background abstract modern video 3d animation - 超導體 個影片檔及 b 捲影像00:13波浪型
working near the electric power transmission. equipment in an electrical sub station - 超導體 個影片檔及 b 捲影像00:12
facilities, cable, liquid nitrogen tank and engineers on december 22, 2021 in shanghai, china. a high-capacity superconducting power line with... - 超導體 個影片檔及 b 捲影像02:00