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.±0.5% B.±1.5% C.±2.5% D.± 5% Answer: B Analysis: The accuracy of flow meters complying with GB/T 13466 standard is ± 1.5%.
The GWL Series compressor is launched by [Company Name], a leading manufacturer of air compressors.
A. Price and brand B. Performance, price and brand C. Market share and technological innovation D. Production date and transportation method Answer: C. Market share and technological innovation
A. General B. Poor C. Better D. Very good answer: D. very good
A. Low level of protection B. High level of protection C. Low power D. High noise answer: B. high protection level