Crystal twinning patterns in a leucite crystal from volcanic rock, observed in polarized light by Dr. Michael M. Raith of the Steinmann Institut, University of Bonn, Bonn, Germany. Dr.
火山岩中白榴石的晶体结构,来自德国波恩大学施泰因曼学院的迈克尔·m·雷斯教授用偏振光照射白榴石并拍摄到了该照片。
The United Arab Emirates selected the Alenia Aermacchi M-346 in February 2009 to fill a 48-aircraft order, including 20 in the light fighter version.
阿联酋于2009年2月选定的Alenia Aermacchi公司的m - 346,以填补48架飞机的订单,其中包括20架轻型战斗机版本。
Visible for almost two minutes, the spiraling tail trailed a ball of moon-like light that captivated awestruck Norweigan at around 8:45 p. m. local time Wednesday.
可见近两分钟,落后的螺旋式尾巴的月亮般的光球,在当地时间下午8点45左右着迷肃然起敬挪威语星期三。
应用推荐