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	allochthonous population allochthonous river allochthonous rock allochthonous rock allochthonous sediment allochthonous soil allochthonous species allochthonous stream allochthonous swamp allochthonous terrane allochthonoustheory allochthonous theory allochthonous thrust sheet allochthonous transplant allochthons allochthony coal allochtonic formations allocimenol allocinesia allocinesis allocinnamic acid allocinnamic acid alloclamide Alloclamide Hydrochloride alloclase

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