comet dust

常见例句

The glowing comet dust grains are traveling at about 60 kilometers per second through the denser atmosphere around 100 kilometers above Earth's surface.
发光的彗星尘埃颗粒正以每秒60公里的密集的气氛中约100公里以上的地球表面。
The comet dust is vaporized as it enters the atmosphere at upwards of 60 kilometers per second, producing visible trails that begin at altitudes of around 100 kilometers.
这颗彗星尘埃以每秒60多公里的速度闯入地球大气层，在大约100公里的高空开始产生肉眼可见的光迹。
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Dust from comet Swift-Tuttle is responsible for the Perseids, creating the northern hemisphere's regular summer sky show.
斯威夫特-塔特尔彗星撒下的尘埃形成的英仙座流星雨，为北半球的天空年复一年地带来盛大的夏日流星秀。
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A comet is a huge ball of frozen gas and dust that often releases a long trail of material as it nears the sun.
A specially designed collector gathered dust particles from the comet and stored them on the spacecraft.

On the main side, the front side of our ice cube tray, if you will, we exposed that when we flew past the comet, so we caught the comet dust.
NPR: Stardust Set to Deliver Comet Samples
So when we collect comet dust, we're actually collecting some stardust that was, you know, four and a half billion years old and was here when the solar system formed.
NPR: Stardust Set to Deliver Comet Samples
The Spitzer observations suggest young planets circling the star are disturbing smaller comet-like bodies, causing them to collide and kick up a huge halo of dust.
MSN: Wild solar system spotted around distant star