We have a scale called Torino scale that helps us rank the risk coming from each asteroid.
我们有一个称为都灵等级的等级，可以帮助我们对来自每颗小行星的风险进行排名。
Torino scale
原声例句
NASA微课堂
NASA微课堂
And the good news is that for all the asteroids that we've discovered so far, the Torino scale is zero — so, lowest risk for the next hundred years.
好消息是，对于我们迄今为止发现的所有小行星，都灵规模为零——因此，未来一百年的风险最低。
中文百科
杜林危险指数
杜林危险指数（Torino scale）是一套用作衡量近地天体撞击地球的指标，包括小行星和彗星。通常会给天文学家和公众透过集成撞击机会率和破坏力成一个数值，来评估其天体撞击地球的严重性。类似的指标有巴勒莫撞击危险指数（Palermo Technical Impact Hazard Scale），但比前者稍复杂。
英语百科
Torino scale 杜林危险指数
The Torino Scale is a method for categorizing the impact hazard associated with near-Earth objects (NEOs) such as asteroids and comets. It is intended as a communication tool for astronomers and the public to assess the seriousness of collision predictions, by combining probability statistics and known kinetic damage potentials into a single threat value. The Palermo Technical Impact Hazard Scale is a similar, but more complex scale.
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