A.≤0℃
B.≤-10℃
C.≤-20℃
D.≤-30℃
Answer: C
Analysis: The spraying process requires compressed air dew point ≤-20℃ (PDP) to prevent moisture condensation from affecting the coating quality.
Answer: It must meet strict standards for purity and reliability to ensure the quality of pharmaceutical products.
Answer: It uses water as a lubricant, achieving oil-free operation.
A. 1-3% B. 8-12% C. 15-25% D. 30-40% Answer: C Analysis: The clearance volume of reciprocating air compressor causes a 15-25% efficiency decrease.
Answer: It can be determined by observing the pressure differential indicator of the water filter or based on usage time and water quality.
A. Cylinder head and air liner B. Piston and piston rod C. Valve assemblies and lubrication systems D. These are all answers: D. all of the above are