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1. |
What is the value of stand-off distance in Abrasive water jet machining? |
A. | 1.0 - 2.0 mm |
B. | 2.0 - 4.0 mm |
C. | 4.0 - 6.0 mm |
D. | 6.0 - 10.0 mm |
Answer» B. 2.0 - 4.0 mm | |