He is doing research on radiant intensity.

他在研究辐射强度.

《简明英汉词典》

The radiant intensity of a special projectile is obtained at different time and observation points.

该模型实现了在不同时刻、不同观测点对目标辐射强度的计算.

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Average radiant intensity is simply the total radiated power divided by 4π sterad.

辐射的平均强度简单地说是总的辐射功率被4π立体角除.

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