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。
Analysis of mineral composition, physical and chemical properties on instable formation rock in an important work in the study of drilling fluid.
地层矿物组分、理化性能分析是整个泥浆工作中一项极为重要的基础工作。
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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