radiation angle

例句：

1. 1.The scientist measured the radiation angle of the sun's rays to determine its intensity.
   科学家测量了太阳光线的辐射角度，以确定其强度。
2. 2. The engineer calculated the radiation angle of the beam to optimize the system's performance.
   工程师计算了光束的辐射角度，以优化系统的性能。
3. 3. The physicist observed the radiation angle of the particles to study their interactions.
   物理学家观察了粒子的辐射角度，以研究它们之间的相互作用。