Nonsoluble nitrogen (NSN) and soluble nitrogen (SN) in ten tobacco samples were determined with a flow analyzer.
采用流动分析法测定了10种烟草中的不和可
。
Nonsoluble nitrogen (NSN) and soluble nitrogen (SN) in ten tobacco samples were determined with a flow analyzer.
采用流动分析法测定了10种烟草中的不和可
。
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