英语词汇ultra-trace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	ultra-trace
释义	ultra-trace 简明释义超痕量网络释义 1 ?超痕量超痕量短语 1 ultra trace 超痕量 2 Ultra Trace Minerals 浓缩矿物质 3 ultra-trace la 超痕量镧双语例句 1 An automated sequential injection system incorporating a sample pretreatment module was developed for the separation and preconcentration of ultra-trace copper in seawater without dilution. 将样品预处理模块与自动化顺序注射系统相结合，建立了未经稀释的海水中痕量铜的分离富集方法。
随便看	a long time coming a long tongue along track along track distance along track error along-track scanning along vessel a long way a long way away a long way from a long way off a long way to a long way to go a long weekend a long while a long while ago along with alongwith along with it along with love a long word Alonha aloni alonimid alonimide

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