小天体的尺度:小行星(Asteroid):大于20(50)米;流星体(Meteoroid):小 于小行星,大于100 微米;行星际尘埃(Interplanetary dust): 小于流星体。
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Meteoroid Environment Office 流星体环境研究室
meteoroid detection satellite 流量体探测卫星
Meteoroid protection 流星防护
lunar meteoroid [天] 月球流星体
Meteoroid Stream 流星体流 ; 流星体带
meteoroid impact 宇宙尘碰撞
meteoroid dust cloud 流星尘云
meteoroid swarm 流星群
meteoroid body 流星体
N any of the small celestial bodies that are thought to orbit the sun, possibly as the remains of comets. When they enter the earth's atmosphere, they become visible as meteors 流星
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