irradiation depth

例句：

1. 1.The radiation depth of the material is critical for its performance.
   材料的辐射深度对其性能至关重要。
2. 2. The researcher measured the radiation depth to ensure the safety of the experiment.
   研究人员测量了辐射深度以确保实验的安全。
3. 3. The depth of the ocean is a significant factor in determining its ecological characteristics.
   海洋的深度是决定其生态特征的重要因素。