Physical and chemical property targets of bio-diesel and the measuring method have been discussed as well as the feature of bio-diesel composition and the analysis methods.
讨论了生物柴油的物理化学性质指标及其测定方法，重点讨论了生物柴油组成的特点和分析方法。
Performance of products be act on property(physical targets & chemical composition) of materials and mechanical processing.
产品的性能取决于所使用的原材料的性能（物理及化学指标）和加工方法。
The testing of X-ray, chemical analysis and physical property indicates that the chemical treatment has no evident effect on the physical property, chemical composition and structure of native gold.
光、化学分析和物性测试表明，化学处理对自然金的物性、化学成分和结构无明显影响。
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