英语释义

1. surrounding or occurring in the vicinity of a star
circumstellar dust

片语

circumstellar diskA circumstellar disk is a torus, pancake or ring-shaped accumulation of matter composed of gas, dust, planetesimals, asteroids or collision fragments in orbit around a star. Around the youngest stars, they are the reservoirs of material out of which planets may form.

Circumstellar dustCircumstellar Dust is astronomical dust around a star. It can be in the form of a

circumstellar shell拱星壳

circumstellar shells拱星壳

circumstellar light拱星光

circumstellar envelopeCircumstellar envelope is the part of the star

circumstellar astrophysics星周天体物理

circumstellar material星周物质

circumstellar nebula拱星星云

英汉例句

• They 「clearly show that at least some massive stars grow by accreting material from a circumstellar disk of gas and dust, just like our sun did roughly 4.5 billion years ago.」

  它们‘清楚地显示了至少一些巨型恒星由环绕的碟状气体和尘埃凝聚而成，就如我们的太阳在45亿年前一样。’

• But the larger envelope of circumstellar dust extends some 60 billion kilometers into space, equivalent to about 400 times the Earth-Sun distance.

  但是拱星四周星尘更大的外壳可以向宇宙延伸600多亿公里，相当于地球到太阳距离的400倍。

• But a new analysis shows that TW Hydrae retains a surprisingly hefty circumstellar disk, implying that the star could still be forming giant planets.

  但是一项新的分析显示：长蛇座TW周围仍然环绕着异常巨大的碟状物，这说明长蛇座TW仍然在形成行星。