Abstract N-acetylneuraminic acid certified reference material was separated by semi-preparation HPLC.

摘要采用半制备液相色谱法制备 N- 乙酰基神经氨酸标准物质。

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An inclusive decision captures an n-out-of-m choice [23] at an abstract level, i.e., the inclusive decision can trigger any subset of the two branches in this example.

inclusive decision可在抽象级别捕获m中选n的选择[23]，即在此示例中，inclusive decision可触发两个分支中的任意一个。

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Abstract : A process for extraction of absolute oil from Sichuan 'paste' tobacco was optimized through single factor test and orthogonal test with n-hexane as extraction solvent.

摘要 ： 以四川‘糊烟’为原料，正己烷为提取溶剂，在单因素试验基础上再经正交试验优化‘糊烟’净油提取工艺；

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