They're basically made up of debris left over from the origin of the solar system.

它们基本上是由太阳系起源时遗留下来的碎片组成的。

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Nevertheless the republic's original money system lasted "for nearly two centuries, during which all that was admirable of Roman civilization saw its origin, its growth and its maturity."

尽管如此，共和国首创的货币体系持续了“近两个世纪，期间罗马文明的辉煌见证了它的起源、成长和成熟。”

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The system USES a set of four microphones situated an inch apart to triangulate the origin of the gunshot.

这套系统采用四个相距一英寸的话筒来对枪击地进行三角定位。

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NASA's study of NEOs provides important clues to understanding the origin of our solar system.

ENGADGET: PSA: Asteroid 2012 DA14 will pass the Earth at 2:00pm ET Alt

Data from NEAR could help answer questions about the origin and composition of asteroids, comets and the solar system, according to the mission managers at the Applied Physics Laboratory in Laurel, Maryland.

CNN: NEAR and Eros

The participants in the challenege will get a two month set of data from the National Airspace System, which includes a slew of data such as flight number, origin, destination, take-off time, arrival time, latitude and longitude at frequent interim waypoints along the journey and weather and wind data.

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