单词meteoroid
n.: 陨星体
网络: 流星体；宇宙尘；流星物
陨星群
流星体,陨星体
复数：meteoroids
A bright trail or streak that appears in the sky when a meteoroid is heated to incandescence by friction with the earth"s atmosphere.
流星流星体与地球大气摩擦加热至白炽在天空中出现的闪光痕迹或光带
A bowl - shaped depression in a surface made by an explosion or the impact of a body, such as a meteoroid.
碗状凹陷由于爆炸或流星之类的物体的碰撞而在地表形成的碗状凹陷处
Such massive rings would be less sensitive to the darkening effect of meteoroid bombardment, thus explaining their brightness today.
如此厚重的光环降低了流星撞击引起的暗化效应，因此也可以用来解释目前光环亮度的问题。
In Europe until after 1803, people realized the meteoroid meteorite crashed to the ground part of the residue.
在欧洲直到1803年以后，人们才认识到陨石是流星体坠落到地面的残留部分。
The cometary ejection play a crucial role in formation and evolution of the meteoroid stream.
彗星的喷发速度在流星群的演化过程中起着重要作用。
Studies on meteoroid streams are briefly and systematically presented.
对流星群的研究作了简明而系统的介绍。
relationship among asteroids, comets and meteoroid streams, and new topics in meteoroidal researches are stated.
流星群与彗星和小行星的相互关系以及流星群研究中的新课题。
"Meteoroid impacts into, and collisions among, these bodies and the moonlet could liberate dust to form the arc, " said Hedman.
“流星影响到，和之间的碰撞，这些机构和小卫星可以解放尘埃形成电弧说，”赫德曼。
Once it hits Earth, a meteoroid suffers an identity crisis and becomes a meteorite.
流星体一旦撞上地球，就变成了“陨石”。
Shortly before the uninhabited space station reached orbit in May 1973, aerodynamic pressure ripped off a meteoroid and heat shield.
在1973年5月无人空间站到达轨道前不久，空气动力压力扯破了一个流星体和挡热板。