Conclusion: the people's moving was the main influence on the concentration of airborne bacteria in this building.

结论：楼内空气细菌浓度的变化受人员流动影响较大。

youdao

Conclusion: the people's moving was the main influence on the concentration of airborne bacteria in this building.

结论：楼内空气细菌浓度的变化受人员流动影响较大。

youdao