慧尾 meaning in English

comets tail

A tail of dust and gas may stretch millions of kilometers across the sky .
尖埃和气体组成的慧尾可以跨过天空，延伸数万里。
He suggests that the earth may have been hit by a comet, or may have passed through the tail of a comet .
他说地球可能会遇到慧星或者穿过一个慧尾。
At the same time try to judge the brigheness of its nucleus(brightest part), and see how far you can trace its tail .
与此同时，还要设法判断慧核（最明亮的部分）的亮度，观察一下慧尾有多远。
The brightest flares left shimmering , smoky trails that hung in the sky for a few seconds
那些最亮的流星拖着闪耀的气状慧尾划过空中，持续时间长达数秒钟。
The frozen balls of ice and debris are rich with basic elements like iron , as well as carbon - based molecules
慧尾冰球状的碎片中含有大量类似铁和碳分子的物质。