quantitative determination of composition
quantitative determination of composition
成分定量测定
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Analysis: in chemistry, the determination of the properties and composition of samples of materials; qualitative analysis establishes what is there, and quantitative analysis measures how much.
分析：化学用语，指决定某一物质样品之物理性质或化学组成的步骤。定性分析建立在含有什么，而定量分析是测量有多少含量。
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