衍射角为波进行衍射时，其在行进方向线与法线之间的角度。通常只有光之类的线形波长才会有，且为多重角度，此现象与光的波动性有关。图示：每个缝衍射在衍射角相同的地方有相同的条纹。
A simple linear model for the fixed diffraction angle is set up by numerical calculation and parameter fitting.
针对卫星光通信中衍射角固定的应用情况,通过数值求解和参数拟合,得出了保持衍射角固定不变的控制方法和基于平面的模型。
参考来源 - 用于卫星光通信的非机械光束方向控制技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
由校正后的公式计算的成象点，其衍射角及坐标值可获得精确的结果。
The exact results of the diffractive angle and coordinate value for imaging point can be obtained if corrected coefficient is used in these formulas to correct.
最后讨论了具有化学短程序合金的全干涉函数在零衍射角附近的行为。
Finally, the behavior of the total structure factors near the long wavelength limit for alloys, which have chemical short range order, is discussed.
蓝色波长的衍射角度要小于绿色波长的衍射角，它们均比红色光的衍射角度小。
The blue wavelengths are diffracted at a lesser Angle than the green wavelengths, which are at a lesser Angle than the red wavelengths.
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