原子面对X射线的反射只有满足布拉格方程时才能发生反射，把X射线这种反射称为选择反射。
可基于将要在其上沉积金属的材料或金属要反射的光的波长来选择反射金属。
The reflective metal may be selected based on the material on which it is to be deposited, or the wavelength of the light it is to reflect.
合理选择反射区曲线的长度，可减少近地物反射的杂波，提高低空目标的探测能力。
Through selecting appropriate curve length of the reflection surface, it can reduce the reflection clutter of the near ground and improve the detection ability of low altitude.
合理选择反射区曲线的长度，可减少近地物反射的杂波，提高低空目标的探测能力。
Through selecting appropriate the curve length of the reflection surface, it can reduce the reflection clutter of the near ground and improve the detection ability of low altitude.
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