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For example, trained observers obtain a very large amount of information about a star mainly from the accurate analysis of the simple lines that appear in a spectrum.

例如，经过训练的观察者主要通过对光谱中出现的简单线条的精确分析来获取关于恒星的大量信息。

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Where does New Delhi think its oil comes from (about 70%, mainly from the Middle East)?

FORBES: INDIA, MEET AUSTRIA-HUNGARY

Frelimo's leaders are mainly from the south, and northerners suspect them of favouring their own region.

ECONOMIST: Maturing Mozambique | The

These workers come mainly from the Philippines and Indonesia, often spending years in the territory.

BBC: Hong Kong court denies domestic workers residency