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赛弗特星系
释义
赛弗特星系
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理学
活动星系核分类
释
Seyfert galaxy
赛弗特星系
星系核极亮,具有强而宽发射线的活动星系,常有旋臂结构。因美国天文学家C.K.赛弗特(Carl Keenan Seyfert 1911-2-11~1960-6-13)于1943年首先发现而得名。活动星系核的一个亚型。
Astronomy
Seyfert galaxy
赛弗特星系
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agricultural information management standards
agricultural information management standards, AIMS
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agricultural information resources
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agricultural informatization policy
agricultural input-output model
agricultural input policy
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agricultural intermediary organization
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agricultural labor migration policy
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agricultural land
agricultural land consolidation
agricultural land environmental management
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