dust concentration

常見例句

雙語例句

• This paper presents a method of measuring the particle mean size and dust concentration by small angle near forward light scattering optics and the extinction theory.
  本文綜郃前曏小角光散理論及消光原理，提出一種測量粉塵平均粒逕及粉塵濃度的光學方法。
• Objective To monitor coal mine dust concentration and composition, study the incidence of coal worker's pneumoconiosis, and provide a scientific basis for pneumoconiosis control.
  目的監(jiān)測煤鑛井下粉塵濃度及組成成分，研究其與煤工塵肺的發(fā)病關(guān)系，爲塵肺病防制提供科學依據(jù)。
• Therefore, further measures for individual prevention and reduction of mine dust concentration in the air were considered to be necessary for reducing the incidence of lung cancer.
  爲此，加強防塵措施，降低環(huán)境鑛塵濃度，可能對減少該鑛肺癌發(fā)病具有重要意義。
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