absorption edge

例句：

1. 1. The absorption edge of the material is crucial for its performance.
   该材料的吸收边对其性能至关重要。
2. 2.The absorption edge of the film is sharp, indicating good optical quality.
   该薄膜的吸收边清晰，表明良好的光学质量。
3. 3.The absorption edge of the solar cell is determined by the bandgap energy.
   太阳能电池的吸收边由带隙能量决定。