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1.Eight equations computed isotopic abundance and two equations computed isotopic abundance ratio have been given.
给出八个计算丰度公式和两个计算同位素比公式。收藏指正
2.The isotopic abundance ratio and content are determined with isotopic mass-spectrometry.
文章用同位素质谱法测定了辐照堆元件铀的同位素丰度比和含量。收藏指正
3.Accurate Measurement for the Concentration and Isotopic Abundance of Rhenium Using Multi-Collector Inductively Coupled Plasma Mass Spectrometer
多接收器等离子体质谱精确测定铼含量及其同位素丰度收藏指正
4.Isotopic Abundance Determinations of Hafnium in a Hafnium Reagent and a Control Rod
铪试剂及控制棒中铪同位素丰度测定收藏指正
5.The measurement method of the isotopic abundance ratios for the nanogram samarium was performed by Finnigan MAT 262-RPQ thermal ionization mass sepctrometer.
本文简介了使用Finnigan　MAT　262热电离质谱仪对超微量钐天然同位素丰度比的精密测定。收藏指正
6.ABSOLUTE MEASUREMENT OF SAMARIUM ISOTOPIC ABUNDANCES
钐同位素丰度的绝对测量收藏指正
8.isotopic exchange
同位素交换收藏指正
9.The Correction for Absolute Gravity Measurement
绝对重力测量值的改正收藏指正
10.AUTOMATIC ABSOLUTE MEASUREMENT OF ~(125)I ACTIVITY
自动绝对测量~(125)Ⅰ活度收藏指正