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过程气相色谱仪由取样机构，柱和检测器组成。
The process gas chromatograph consists of a sampling mechanism, a column and a detector.
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气相色谱分析中是否一定要用质谱检测器？
Do we always need mass spectrometry with gas chromatography?
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气相色谱分析中是否一定要用质谱检测器？
Do we always need mass spectrometry with gas chromatography?
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