其中的一个光环------那个大的环围绕着银河系的中心------可能是最近与另外一个银河系碰撞中形成的，天文学家们说。
One of the rings, a large one encircling the galactic center, may have formed during a recent collision with another galaxy, astronomers say.
空间不是三维的，事实上拥有弯曲成环的多个维度，这些环小到只有在高能粒子碰撞时才能检测得到。
Instead of being three dimensional, space actually has more dimensions that are curled into little loops too small to be detected except in a high-energy particle collision.
逆冲型地震主要发生在环太平洋地震带上，在喜马拉雅碰撞边界和巽他弧也有发生。
The thrust earthquakes are mainly distributed on the circum-pacific seismic belt, the Himalaya collision boundary and the Sunda arc.
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