diffracting edge

例句：

1. 1. The diffracting edge of the crystal is sharp andclear.
   晶体的衍射边缘尖锐而清晰。
2. 2. The diffracting edge ofthe beam is crucial for accurate measurement.
   光束的衍射边缘对于精确测量至关重要。
3. 3.The diffracting edge of thewavefront is responsible for focusing the light.
   波前的衍射边缘负责聚焦光线。