Answer: It is widely used in medical, food and beverage, electronics, pharmaceutical, chemical, textile, and laboratory industries.
A. Price and brand B. Performance, price and brand C. Service quality and reputation D. Production date and transportation method Answer: C. Service quality and credibility
Answer: The advantages include no oil contamination, low maintenance costs, long service life, and high energy efficiency.
A. Annex B B. Annex C C. Annex D D. Annex E Answer: C Analysis: The gas production standard corresponds to ISO 1217 Annex D.
A. 100 B. 300 C. 500 D. 800 Answer: D Analysis: Coating defects caused by oil pollution can cause annual losses of more than 8 million yuan for a single production line, highlighting the importance of oil-free air compressors.
A. 1-2% B. 3-5% C. 6-8% D. 10-15% Answer: B Analysis: High humidity reduces effective air volume by 3-5%.