... trace command ==> 跟踪指令 trace concentration ==> 痕量浓度 trace conditioned reflex ==> 痕迹条件反射 ...
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CUSDT固相微萃取管可以从痕量或微量浓度把目标分析物提取出来。
Target analytes can be sampled from trace to neat concentrations using the CUSDT SPME syringe.
由相关系数和主成份分析，选择铁和铝作为沉积物中痕量金属浓度的均一化元素。
Based on correlation coefficients and principal component analysis, fe and al were selected as the concentration normalizer for the different trace metals.
原子吸收光谱法已证明是一种用于测定痕量的金属浓度的灵活多用的仪器。
Atomic absorption spectroscopy has proved to be a versatile tool in measuring concentrations of trace metals.
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