We enclose herewith, as request, approximate estimates. of the electrical apparatus, turb , and other material .
现随函寄上贵方所需要的电气设备、轮机以及其他材料的估价单，请查收。
Methods:Hydrogenated terphenyls in the air was collected with petroleum ether or chorcoal turb and then determined by spectrophotometer.
目的：建立作业场所空气中氢化三联苯的采样和测定方法。
Methods:Hydrogenated terphenyls in the air was collected with petroleum ether or chorcoal turb and then determined by spectrophotometer.
目的：建立作业场所空气中氢化三联苯的采样和测定方法。
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