Objective To establish solvent desorption gas chromatographic method for determination of Diisobutyl ketone in workplace.目的建立工作场所空气中二异丁基(甲)酮的溶剂解吸气相色谱测定方法.The diisobutyl dicarboxylate was prepared by using acid and isobut...
The deposit is genetically of hypothermal type . Ore _ forming solutions have abundant acidulous water and mephitic air.成矿溶液属于气成高温热水溶液,且富含大量碳酸或碳酸气.His acidulous remarks towards the mayor put everyone ill at ease.他对市长尖刻的评...
I saw the motorcycle skidding and its rider spilling in dust.我看到摩托车打滑,骑车人跌落在地.All the wheels of the truck were tied up with iron chains to avoid skidding on the ice road.大卡车的所有轮子上都捆上了铁链,以防止在结冰的路面上打滑.The three of us set o...