Near-infrared spectroscopy (NIRS) is a kind of rapidity and non-destructive analysis techniques which been successfully used in agriculture, food processing and oil industries.
近红外光谱分析技术是一种快速、无损的分析技术，在农业、食品、石化等领域中已经得到了成功的应用。
Different techniques have evolved for trace-metal analysis of polymers. In general, techniques come under two broad headings: destructive techniques and non-destructive techniques.
不同的聚合物技术已经进化为痕量金属分析。一般来说，技术面临两大标题：破坏性技术和非破坏性技术。
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