英语词汇ultratrace怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	ultratrace
释义	ultratrace 简明释义超痕量的超痕量网络释义短语 1 ultratrace impurity 超痕量杂质 2 Ultratrace gold 超痕量金 3 ultratrace amount 超示踪量双语例句 1 Based on the catalytic kinetics method, ultratrace gold in rocks, soil and natural water was determined using total differential photometer. 根据催化动力学方法，采用全差式光度计测定岩石、土壤及天然水中超痕量金。
随便看	north north west north northwest north-north-west north-northwest north-north-westerly north northwest (nnw) north-north-west north-northwest north-north-westwards North Oaks north of north of china north of the border North Ogden North Olmsted Northolt Northome northop north open water north orientation Northorpe North Ossetia North Ossetia-Alania northouse Northover

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