Poynting power

例句：

1. 1.The Poynting power of the light source is a critical factor in determining its efficiency.
   光源的皮尔逊功率是决定其效率的关键因素。
2. 2. In the study of electromagnetic radiation, the Poynting power is used to calculate the energy transfer between different waves.
   在电磁辐射研究中，皮尔逊功率被用来计算不同波之间能量的转移。
3. 3. The Poynting power of a laser beam can be used to measure the intensity of the light source.
   激光束的皮尔逊功率可以用来测量光源的光强。