@air
2025-04-15
What are the main characteristics of silent air compressors?
- A. high noise
- B. low noise
- C. large power
- D. power is small
Answer: B. low noise
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@air
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In which occasions are scroll air compressors used more?
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@air
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What are the main differences between oil-injected air compressors and oilless air compressors?
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@air
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The risk of violating Article 45 of the Air Pollution Prevention and Control Law is mainly related to what components in compressed air?
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@air
2025-04-17
13. Which annex to ISO 1217 does the industry standard for gas production correspond to?
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.