The debris is called a meteoroid. A meteoroid is interplanetary matter.
这些碎片被称为流星体。流星体是行星际物质。
Interplanetary matter
原声例句
VOA Special 2016年2月合集
中文百科
行星际物质 Interplanetary medium
（重定向自Interplanetary matter）
行星际物质是填充在太阳系的物质，太阳系内较大的天体，如行星，小行星和彗星都运行在其间。
英语百科
Interplanetary medium 行星际物质
（重定向自Interplanetary matter）
The interplanetary medium is the material which fills the Solar System, and through which all the larger Solar System bodies, such as planets, dwarf planets, asteroids, and comets, move.
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