Methods The concentration of total dust, respirabledust and the dust dispersivity were measured at same time.
方法对工作场所空气中某种粉尘进行总尘浓度、呼尘浓度、分散度测定。
2
The laboratory tests and underground application show that this dust suppression technique has remarkable effect on the total dust, especially on the respirabledust.
阐述了全工班个体呼吸性粉尘监测系统性的监测方案、监测过程及效果分析，提出了有针对性的防尘对策。
3
Objective to study the method to classify respirabledust harmfulness degree in geological exploration profession so as to provide scientific basis for its management.