... instrument constant仪表常数 isotope ratio measurement同位素丰度测定 hellogh temperaturethermistor高温措置惩罚 ...
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此仪器可用于气体分析以及轻元素的同位素丰度测定。
This instrument can be used for gas analysis and determine of isotopic abundance of light elements.
用热表面离子源测定了锂同位素丰度，在样品全耗尽过程中累计离子流强度。
The isotopic ratio of lithium was determined by cumulating intensity of ion current during evaporation of all samples on evaporation filament.
每当测定非常低的浓度和同位素丰度时总是首先使用无机质谱法。
Spectrometry is preferably used each time extremely low concentrations and isotopic abundance are to be determined.
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