... spectrographic camera 光谱照像机 ; 光谱照相机 mass spectrographic 质谱的 spectrographic aalysis 摄谱分析 ...
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helium mass spectrographic method 氦质谱探漏法 ; 氦质谱仪法
mass spectrographic analysis 质谱分析
mass spectrographic analysis results 质谱分析结果
Mass spectrographic analysis of helium 氦质谱法
The REE contents of 84 placer gold samples and 7 hard rock gold samples in Heilongjiang province are determined by plasma mass spectrographic analysis.
对黑龙江省84个砂金样品及7个岩金样品，用等离子质谱仪分析了它们的稀土元素含量。
In this paper the quadrupole mass spectrographic analysis of the operation characteristics of Zr-Al pump is described and some questions which deserve to study and improve.
本文叙述了锆铝泵工作特性的四极质谱分析，以及值得讨论及改进的问题。
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