The small average relative error of tracer concentration 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
Experiments on the air infiltration by tracergas method and obtains the range of air infiltration rate per unit length of the crack.
采用示踪气体法对塑钢窗冷风渗透量进行了实验，得出了塑钢窗单位长度渗风量的范围。
3
Calculates the natural ventilation rate by the tracergas decay method. Explores the definition of the indoor criterion of carbon monoxide concentration and the carbon monoxide emission from cars.