Answer: It is widely used in medical, food and beverage, electronics, pharmaceutical, chemical, textile, and laboratory industries.
A. 1873 B. 1871 C. 1965 D. Answer in 2017: A. in 1873
Answer: Water lubricates the screw elements, cools the compressor, and helps to maintain optimal operating conditions.
Answer: The compressor uses water instead of oil to lubricate the screw elements, eliminating the risk of oil contamination in the compressed air.
A. Home use B. Commercial places use C. D. Agricultural production use answer: C. Industrial use
A. Small market share B. Few product types C. Insufficient technological innovation D. Large market share and rich product categories Answer: D. Large market share and rich product variety