走进兰州交通大学新能源装备与系统安全实验室，李帅兵与学生正在交流科研项目中遇到难题与攻克思路。“太赫兹无损检测技术将电缆系统故障识别率提升至99%，如同给设备装上了‘透视眼’和‘监护仪’，为电力设备安全运行提供了强有力保障。”李帅兵说。

SYDNEY, June 18 (Xinhua) -- Sharks nearly perfectly follow the long-hypothesized "two-thirds scaling law," a mathematical rule that predicts how surface area and volume change with body size in large ...