photonuclear cross-section

例句：

1. 1.The nuclear reactor is designed to produce high-energy neutrons.
   该核电站设计用来产生高能中子。
2. 2.The photonuclear cross-section of the material is crucial for understanding its behavior.
   该材料的光核截面对于理解其行为至关重要。
3. 3.The measurement of this cross-section is essential for predicting the behavior of the material under various conditions.
   测量这一截面对于预测材料在各种条件下的行为至关重要。