Early lasers all used a synthetic ruby rod as the material that produced the laser light.
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Q2: Laser light tends to remain in a
Q3: Most laser welding and cutting operations use
Q4: Most lasers used for cutting, drilling, and
Q5: No other drilling process can match the
Q6: High-powered solid lasers are most often used
Q8: Some laser cutting equipment can make cuts
Q9: Arc cutting electrodes differ from standard arc
Q10: _ uses a high-pressure jet of gas
Q11: _ gases do not add any heat
Q12: _ was an improvement of the carbon
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