• 玫瑰精油制备方法进行了综述按照化学物种归纳了国产玫瑰精油化学成分香气特征进行了分析。

    Then, according to chemical kinds, components and their aromatic characteristics of rose essential oil produced in China were summed up.

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  • 熔炼真空度、聚焦、原料化学成分、尺寸规格熔炼速度,搅拌速度等单品制备的影响进行详细分析。

    Influences of vacuum in the melting chamber, chemical composition and specifications of Mo and Mo-Nb alloy feed stock bar growing rate, rotation rate on processing Mo-Nb alloy are analyzed in detail.

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  • 主要讨论了钼-合金原料品质包括烧结制备、原料的化学成分、原料棒尺寸规格单晶制备影响

    Influence of feedstock qualities of Mo-Nb alloy, including its preparation of sintering billet, chemical composition and specifications, on processing single crystal is discussed in detail.

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  • 详细列出了国内人工粒径分布化学成分研究制备方面尚存在问题

    The problems existed in particle size distribution, chemical composition and producing of domestic synthetic test dust are also proposed.

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  • 沿垂直膜俄歇电子(AES)逐层分析证明优化溅射工艺制备薄膜化学成分分布均匀。

    The results of AES analyses proved that the optimized composition is uniform along the cross-sections of the film.

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  • 采用等离子喷涂法金属涂层电子显微镜分析了不同工艺条件下钽涂层的化学成分、表面形貌,测试涂层基材结合强度

    Ta coating was prepared by plasma spraying, which composition and morphology were investigated using SEM, also the bonding strength between Ta coating and Al substrate was tested.

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  • 结论不同提取方法花红景天挥发性提取物化学成分影响非常大,根据临床用药要求选用适宜制备方法。

    CONCLUSION Different extraction exert a great influence on chemical components of essential oil. The appropriate extraction should be used according to clinic requirement.

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  • 结论不同提取方法花红景天挥发性提取物化学成分影响非常大,根据临床用药要求选用适宜制备方法。

    CONCLUSION Different extraction exert a great influence on chemical components of essential oil. The appropriate extraction should be used according to clinic requirement.

    youdao

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