短語(yǔ)詞組短語(yǔ)incident light beam 入射光束incident laser beam 入射激光束incident electron beam 入射電子束incident electron beam detail 入射電子束incident electromagnetic beam 電磁波束an oblique incident light beam 斜入射光the incident beam 入射高斯光束incident beam axis 入射射線(xiàn)束軸線(xiàn)gaussian incident beam 高斯光束 返回 incident beam