n.喷出物；废物；渣
The pressure behind this shock wave drive的三人称单数形式" target="_blank">drives an inward-moving shock wave that heats the ejecta, seen as the aqua cloud. 激波后的压力驱使内行激波加热物质，也就是图中浅绿色的云团。
The expanding ejecta drive an outward-moving shock wave that races ahead of the ejecta into the interstellar gas (bright outer rim). 膨胀的抛出物驱动着外行激波，领先于抛出物冲入星际气体（明亮的外缘）。
First came the impact, which sent a rain of molten rock into the air and formed an "ejecta" layer for hundreds of miles around. 首先是冲击，使熔融岩石冲进空中并且在数百英里周围形成一个喷出物的层，然后变成海啸，劳顿说："海浪冲向熔融岩石并且把它带回到深水"。
In 1994 Hubble began seeing spots brighten in sequence along the central ring: the supernova ejecta smacking into the ring. 1994年哈伯开始观测到中央环上一连串的亮点，这代表超新星的喷出物霹雳啪啦地撞上了环圈。
Searches in the data for impurity clues in the water-ice dominated plumes and surface ejecta are progressing. 科学家持续不断的研究这些由水冰主宰的羽状烟柱及表面喷发物，来寻找水存在的可能性。
Bright ejecta rays such as these are produced as impacts excavate and eject relatively unweathered subsurface material. 这些放射状陨石坑产生于天体撞击溅出的地下物质，绵延在遍布陨石坑的水星表面数百公里。
adj.驱逐；排泄；退壳
