physical mutagen

例句：

1. 1. The researcher found that the physical properties of the substance were consistent with the theoretical model.
   研究者发现该物质的物理性质与理论模型一致。
2. 2.The scientist conducted experiments to test the physical properties of the new material.
   科学家进行实验以测试新材料的物理属性。
3. 3.The physicist explained the physical principles behind the phenomenon.
   物理学家解释了这一现象背后的物理原理。