As none of the air samples containe

As none of the air samples contained D. hansenii, the production materials and room installations used in the production
processes were believed to be the sources of contamination.

ผลลัพธ์ (อังกฤษ) 3:

none of the samples contained air As D. hansenii, the production room installations and materials used in the production processes
were believed to be the sources of contamination.