【column_density】什么意思_英语column_density的翻译_音标_读音_用法_例句_在线翻译

column density

柱密度

... 天鸽[星]座 Columba 柱密度 column density (N) 二分圈；二至圈 colure ...

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短语

density gradient column 梯型密度柱 ; 密度梯度管 ; 密度测量柱

column power density 电子束功率密度

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天文学

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abstract: In atmospheric physics, column density is the mass of substance per unit area integrated along a path, typically a line of sight or a from the bottom of the atmosphere to the top:

以上来源于: WordNet

Moreover, with the exception of the continent's handful of natural resource-rich, low population-density countries like Angola (see my September 9, 2008 column advocating an intensified strategic engagement with the geopolitically significant Southern African country), most of America's would-be partners are constrained by lack of the financial wherewithal to upgrade their capabilities to meet even short-term priorities.

CENTERFORSECURITYPOLICY: A stimulus for African security

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