The dustmeasurement instrument has the function of alarming and data transmission.
该粉尘测试仪还具有报警和数据传输等功能。
2
It can be found in the processes of coal dust transportation, crude oil recovery, sewage discharge, dustmeasurement, air conveying, astronautic and aeronautic propulsion, etc.
煤粉输送、原油开采、污水排放、粉尘测量、气力输送、航空航天推进等生产、工作过程都包含气粒多相流动。
3
Method By using high sensitive negative voltage exhaled thoron progeny collection and measurement system, the thorium lung burdens of each dust exposed miner was obtained.