When can the history of air compressors go back?
- A. in 1873
- B. in 1871
- C. in 1965
- D. in 2017
Answer: A. in 1873
Answer: It provides clean, dry compressed air for electronic manufacturing processes.
A. Oil coking B. Dust accumulation C. Insufficient pressure D. Answer: A Analysis: Coking oil will block the optical path system of the laser welding machine, resulting in a single maintenance cost exceeding 500,000 yuan.
A. Industry, energy, construction, mining B. Home use, commercial use C. Oil and gas, construction, logistics D. Manufacturing, oil and gas, construction Answer: A. Industry, energy, construction, mining
A. Noise is loud B. Low efficiency C. Maintaining complex D. Low noise and high efficiency Answer: D. Low noise and high efficiency
Answer: The motor power varies depending on the compressor model and flow demand, with specifications such as 5.5kW, 7.5kW, 11kW, etc.