Experiments on the air infiltration by tracergasmethod 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。
2
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.