激光切割中入射角对切割质量的影响。
Effect of laser beam incident Angle on laser cutting quality.
当入射角在这三个角附近时，横向偏移变得非常大。
When the incident Angle is around the three angles, the lateral shift is very large.
若想同时获得三个参数的相对扰动量，就必须增大入射角。
If we want to obtain three perturbations, the incident angel should be increased.
若想同时获得三个参数的相对扰动量，就必须增大入射角。
If we want to obtain three perturbations, the incident angel should be increased.
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