稳定同位素比值质谱仪 Stable Isotope Ratio Mass Spectrometry
气体同位素比值能谱仪 gas isotopic ratio mass spectrometer
同位素比值质谱仪 isotope ratio mass spectrometers
型同位素比值质谱仪 IRMS ; isotope-ratio massspectrometers
比值仪
comparator
以上为机器翻译结果，长、整句建议使用 人工翻译 。
通过对管线仪特征比值定深法的分析，获取了特征比值与管线深度变化的关系；
By analyzing the characteristic ratio method of calculating underground pipeline depth, the relation between characteristic ratio and pipeline depth was obtained.
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