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星際物質
释义
星際物質
xīng jì wù zhí
恆星間密度極稀的物質。包括佔90%的氣體和10%的塵埃微粒,以及宇宙線和磁場。氣體主要由氫、氦組成。塵埃是直徑只有幾十萬分之一釐米的固態質點。平均密度爲1個粒子/立方厘米。既是形成恆星的材料,又是恆星演化的產物。
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long-term responses
long-term result
long-term results
long-term retardant
long term retention
long-term retention
long term retention file
long-term risk-neutral probability
Long-term rotated fertilization
long-term rotation
long-term run
long-term running
long term running test
long term rupture strength
long-term rupture strength
longterms
long term salary incentives
long-term salt stress
long-terms benefit
long term scheduler
long-term scheduler
long term scheduling
Long-term scour depth
long term securities
long-term securities
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更新时间:2025/6/9 9:20:06