File:NIOSH Aerosol Sampler (8743397933).jpg
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分類:
- Influenza
- Safety
- Sampling
- Work (activity)
- Workplaces
- National Institute for Occupational Safety and Health photographs
- Women wearing glasses in the United States
- Women with earrings in the United States
- Female humans standing indoors
- Gray and pink clothing
- Standing women looking at viewer
- Women with objects looking at viewer
- Portrait photographs of women smiling