By simulating gas with heated air, the influence of swirling flow on gas concentration field at gas burner is investigated according to the principle of heat balance.
以加热空气模拟燃气，根据热平衡原理，考察旋流对燃烧器出口处燃气浓度场的影响。
On the base of analysis and comparison, the thermal conductivity type of gas meter was considered the most promising field fumigant concentration detector.
经过比较分析，热导气体检测仪被认为是最有应用前途的现场熏蒸剂气体浓度检测仪。
On the base of analysis and comparison, the thermal conductivity type of gas meter was considered the most promising field fumigant concentration detector.
经过比较分析，热导气体检测仪被认为是最有应用前途的现场熏蒸剂气体浓度检测仪。
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