A. color difference
B. Orange peel phenomenon
C. fish-eye defect
D. sagging
Answer: C
Analysis: Oil residue will cause “fish eye” defects on the surface of car paint, which seriously affects the coating quality.
Answer: It uses a water-cooled system to maintain optimal operating temperatures.
Answer: It includes regular inspections, changing the lubrication water, and cleaning the air filter.
Answer: It is mainly used in medical, food, electronics, chemical, textile, and other industries where high air quality is required.
Answer: Yes, the GWL Series compressor adopts an efficient cooling system and can operate normally in high-temperature environments.
A. 5% B. 11% C. 20% D. 30% answer: B Analysis: For every 1000 meters increase in altitude, the air density drops by about 11%.