(Table 3, page 51) Contents in uranium, thorium and proactinium for a mangane...
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One or two grams of dried sample were subjected to leaching by acid and the residue was separated by centrifuge.From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine...
称取1至2克干燥样品进行酸浸提处理，随后通过离心分离得到残渣。1983年至1989年间，美国国家海洋和大气管理局国家环境信息中心（NOAA-NCEI）整理编制了NOAA-MMS海洋……
