energy concentration detection 聚集性检测
combustible gas concentration detection 可燃气体浓度检测
gas concentration detection 气体浓度检测
methane concentration detection 甲烷浓度检测
alcohol concentration detection 酒精浓度检测
solution concentration detection 溶液浓度检测
emulsion concentration detection 乳化液浓度检测
The state of oxygen concentration detection was comprehensively surveyed in this thesis. Merits and demerits of each method and equipment were commented.
文章全面调研了目前氧气浓度检测的现状，评述了各种方法和检测装置的优缺点。
参考来源 - 激光二极管波长调制技术用于氧气浓度检测的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The latest progress of trace gas concentration detection technology is reviewed.
综述了近些年来国内外痕量气体浓度检测技术研究的最新进展。
The method is compatible with concentration detection of diethyl ketone in the air at a workplace.
本方法适用于工作场所空气中二乙基甲酮的浓度测定。
Secondly, spectral modulation techniques are applied into concentration detection because methane has very weak absorption in near-infrared region.
其次，针对甲烷在近红外波段吸收弱的特点，把光谱调制技术用于浓度检测。
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