"After intensive efforts ... and following the deployment of internal security forces in northern and western Sweida, all ...

OSLO, July 20 (Xinhua) -- Norwegian police on Sunday arrested a man in connection with a shooting incident at the Tveita Center shopping mall in eastern Oslo, which left one person seriously injured.

研究组报道了194种圆顶晶胞超轻气凝胶，通过二维通道限域化学策略实现了从4.2K至2273K极宽温度范围内的优异弹性。这种气凝胶在99%应变下2万次循环后仍表现出超弹性，在2273K高温下100次循环后表现出抗热震性。