• 另外混凝土火力大坝,73.5大坝14米高的乌赫大坝也位于震中附近

    Two other concrete gravity DAMS, the 73.5m (341ft) high Sugesawa dam and the 14m (46ft) high Uh DAMS were also located close to the earthquake epicenter.

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  • 本文以对氨基苯乙酮铁为底物,转移催化剂存在的条件下发生氮芳基化反应

    In this paper, we investigated the arylation reaction ofp-amino acetylbenzene with ferrocene catalyzed by phase transfer catalyst.

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  • 论文探索性地研究了催化体系取代氮芳化,对合成取代二芳基化产物具有一定的指导作用。

    Finally, we also investigated the arylations of substituted ferrocenes under the same conditions and the results may be a useful guidance for the synthesis of these compounds.

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  • 简笔山石以花青色调清新淡雅,遒劲苍老的乔木生气

    In the stick light ink on the rocks of cyanine dye, tonal and pure and fresh quietly elegant, elegant old trees but mau however have angry;

    youdao

  • 简笔山石以花青色调清新淡雅,遒劲苍老的乔木生气

    In the stick light ink on the rocks of cyanine dye, tonal and pure and fresh quietly elegant, elegant old trees but mau however have angry;

    youdao

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