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。
Theoretical analysis method of various projects must be based on reasonable soil physical property parameters.
各种实际工程的理论分析方法，都必须以合理的土体物性参数为基础。
The special property analysis of Fourier transform on image processing is first given in this paper, and the physical significance of Fourier transform is also given.
针对数字图像处理的特点，对傅立叶变换用于图像处理的特性进行了分析，给出了傅立叶变换用于图像处理时的物理意义。
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