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利用指纹谱图识别某些物质是一种快速的定性方法，过去多用于液体〔１，２〕和固体〔３－８〕样品，采用ＧＰＣ（裂解色谱）方法。而用气相色谱对多组分气体样品进行识别的报告尚不多见。现报告于后。１ 材料与方法１．１ 人孔井概况 人孔井是检查、维护和维修铺设在地下电?
The use of fingerprinting to identify certain substances is a fast and qualitative method that was used in the past for liquid [1,2] and solid [3-8] samples, using GPC (pyrolysis chromatography). However, there are few reports on the identification of multi-component gas samples by gas chromatography. Now report later. 1 Materials and Methods 1.1 Manhole Overview Manhole is the inspection, maintenance and repair laying in the underground electricity?