• The research is made on dewaxing shellac by centrifugal subside and refining shellac-wax by Carbon tetrachloride extraction.

    介绍了离心沉降胶脱四氯化碳萃取精制紫胶蜡的研究过程和结果。

    youdao

  • The research is made on dewaxing shellac by centrifugal subside and refining shellac-wax by Carbon tetrachloride extraction.

    介绍了离心沉降胶脱四氯化碳萃取精制紫胶蜡的研究过程和结果。

    youdao

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