The basic concepts of colorimetry were expressed by Grassman in 1853.测色学的基本概念早于1853年由格腊斯曼加以阐述.The content of ginsenoside in Panax quinquefolium L was determined by colorimetry.用香草醛-冰醋酸比色法测定西洋参中总皂甙的含量.Methods: The content...
This chapter describes methods of estimating airborne pollutant concentration distrubutions associated with various emission sources.本章论述几种有关各种排放源的大气污染物浓度分布的估算方法.Hyetographs are important in estimating stormflow hydrogra...
He has been arrested by mistake.警方误抓了他。He opened Ingrid's letter by mistake.他不小心拆了英格丽德的信。She let the news slip by mistake , in an unguarded moment.她一不留神泄漏了消息....
As an overseer, he suddenly found himself a person of consequence.作为工头，他突然觉得自己是个重要人物。I was put in the tailor shop, and I loved it. I was promoted to overseer.我被安排到缝纫车间，结果我很喜欢这项工作，后来还晋升为工头。When the overseer was not in, mo...