彗星

Halley's Comet has an eccentricity of about 0.9675.

哈雷彗的偏心率约为0.9675。

The appearance of a comet caused universal dismay in the ancient world.

在古代，彗的出现引起普遍的恐慌。

The comet will (not shall ) return in 87 years.

那彗（用 shall ) 在87年后返回。

The earth crosses the tracks of certain comets.

地球穿过某些彗的轨迹线。

Did you ever see a comet?

你看见过彗吗?

Recently they have discovered a comet.

最近他们发现一颗彗。

The population will keep going up if there is no murrain or no interference between the earth and comet.

在发生瘟疫】战争和地球和彗发生碰撞的情况下，人类的人迅速的发展。

If you look over the element ratios we measured, you might conclude that our comet particles look more like chondritic porous IDPs than CI chondrite meteorites.

如果你查看我们测定的元素比率，你得出结论——我们的彗颗粒看上去更接近多孔球粒陨石IDPs而是CI球粒陨石。