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1. |
What is the accuracy of scanning laser gauge for objects of 10-50 mm diameter? |
A. | ±0.15 μm |
B. | ±0.25 μm |
C. | ±0.35 μm |
D. | ±0.45 μm |
Answer» C. ¬¨¬®¬¨¬±0.35 ‚âà√≠¬¨‚à´m | |