• We enclose herewith, as request, approximate estimates. of the electrical apparatus, turb , and other material .

    函寄上贵方所需要电气设备、轮机以及其他材料的估价单,请查收

    youdao

  • Methods:Hydrogenated terphenyls in the air was collected with petroleum ether or chorcoal turb and then determined by spectrophotometer.

    目的:建立作业场所空气氢化三联苯的采样测定方法

    youdao

  • Methods:Hydrogenated terphenyls in the air was collected with petroleum ether or chorcoal turb and then determined by spectrophotometer.

    目的:建立作业场所空气氢化三联苯的采样测定方法

    youdao

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