Next, the astronomers checked the galaxies for the subtle signs of a recent galactic collision, such as a warped disk or a trailing tail of stars.
接下来，天文学家们检测了近期发生星系碰撞的微妙标志，例如扭曲的碟状中心或者拖着尾巴的恒星。
He sells polycarbonate scraps from the disk making process to an automaker for tail lights.
他还把生产光盘过程中的聚碳酸酯下脚料出售给汽车制造厂，来做汽车尾灯。
Disk tail-feather tip, wobbles during display, Courtesy Peter Mullen, Ph.D.
王极乐鸟尾羽尖端的圈形结构在展示过程中会不断晃动，彼得·穆伦(Peter Mullen)博士惠赠。
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