短語詞組短語off beam axis scattering 離光束軸散射;軸外像差three -beam laser scattering method 三光束激光散射方法beam scattering coefficient 光束散射系數(shù)beam angle of scattering 散射束錐角;光束孔逕角;散射波束角molecular beam scattering 分子束散射atomic beam scattering 原子束散射beam -gas scattering 束流Scattering Beam Gun 擴散光束砲 返回 beam scattering