hale-bopp comet s photometry 海尔
hale-bopp comet ' s photometry 海尔
Swift's s Comet 斯威夫特彗星
S Comet 街道地址 ; 哈雷彗星
s Comet Prolem 正轴测法的高斯基本定理
以上来源于: WordNet
In that event,astronomers were able to observe the icy comet long before it struck the solar system's biggest planet.
VOA: special.2009.08.25
Sometimes,observers see this as a comet's tail, which can be visible to the unaided eye stretching across the night sky.
VOA: special.2011.02.09
One argument against the comet theory is that a comet would have left a large hole in the Earth's surface.
VOA: special.2009.01.20
应用推荐