An accuracy of at least 0.06%is required. Experiment data sum of peak 1 and peak 2 peak 1-y' peak 2-y 分峰条件： 峰形Voigt Accelerating Voltage Camera Length Magnification 200kV 10000× 500nm 置信度99% Misfit::0.15~0.35% 采集条件： 0.01/step aw=3.5238A 4s/step 72 7374 75 76 77 78 20 ’ 采集条件： 0.01o /step 4s/step 分峰条件： 峰形 Voigt 置信度 99% An accuracy of at least 0.06% is required. Misfit: 0.15~0.35% (220) 𝑎𝑁𝑖=3.5238Å