The small average relative error of tracerconcentration in the different range of researched gas flow capacity shows a better quenching effect of the new quench mixer.
在所研究的气体流量范围内，示踪剂浓度的平均相对偏差均较小，说明新型急冷混合器具有较好的混合效果。
2
New tracer ammonium molybdate was used and samples with high or low concentration of molybdenum were analyzed by means of colorimetry and polarography.
采用新示踪剂钼酸铵，并对高、低不同浓度的钼样品进行比色法和示波极谱法分析。
3
A tracer monitoring for the landfill gas concentration variation on the condition of leachate recycling as compared with that of the un-recycling in semi-aerobic landfill.