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Klobuchar

Klobuchar

3）克罗布歇（Klobuchar）模型由美国的J.A.Klobuchar 提出，描述电离层的时延，广泛地用于GPS 导航定位中，在GPS 卫星 …

Senator Amy Klobuchar, a Michigan Democrat, said the Americans at all levels but notably the middle class continue to struggle .

Amy Klobuchar, the state 's senior senator, is up for re-election in 2012 ; Mr Franken will face a tough fight in 2014 .