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Speciation of Zn, Mn, Fe, Ca, Mg in Ligusticum wallichii Franch was analyzed by atomic absorptionspectrometry.

利用原子吸收分光光度法对中药川芎中锌、锰、铁、钙、镁五种元素的形态进行了研究。

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Filling in each cell takes constant time - just a bounded number of additions and comparisons - and you must fill in mn cells.

填充每个单元格需要的时间是恒定的—只需有限数量的相加和比较—必须填充mn个单元格。

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Amy Klobuchar (D-MN) met with me in her office on Capitol Hill.

NPR: And the Biggest Producer of Greenhouse Gases Is ��

In a revealing interview with Steve Moore of The Wall Street Journal, Rep. Michele Bachmann(R-MN) called for repealing taxes on capital gains.

FORBES: How Michele Bachmann Would Knock 20,000 Millionaires Off The Tax Rolls