A. semiconductor manufacturing
B. food production
C. building construction
D. pharmaceutical industry
Answer: C
Analysis: Due to the high oil content of compressed air, oil-injected air compressors are usually used in occasions where the purity of compressed air is not high, such as construction.
A. Home use B. Commercial places use C. D. Agricultural production use answer: C. Industrial use
A. Large flow and high power are conducive to energy conservation B. Compact structure and good sealing effect C. Smooth operation and reliable operation D. These are all answers: D. all of the above are
Answer: It uses water as a lubricant, achieving oil-free operation.
Answer: The screw and star wheel are designed for high efficiency and long life, with precise tolerances to ensure smooth operation.
A. 50% B. 60% C. 75% D. 80% answer: C analysis: Environmentally friendly oil-free air compressors reduce oil pollution, thereby reducing the frequency of filter replacement and optimizing maintenance costs.