interplanetary matter的用法和樣例：
例句
- Molecular clouds play an integral role in the prestellar evolutionary sequence of interstellar matter.
分子云在星際物質的星前期演化序列中起著不可缺少的作用。 - Because they are rearranging the interstellar matter that is the raw material for further star formation, they may affect the rate of star formation in a galaxy.
星群爆發意味著重組星際物質，而這些星際物質恰恰是新星形成的原料，因此，星群爆發可能影響星系中新星形成的速度。
