特殊用法blade incidence1.叶片安装角, 叶片冲角cost incidence1.成本归属effective incidence1.实效入射角familial incidence1.家族(内)发病数final incidence1.最后负担glancing incidence1.切线[擦地]入射, 掠入射grazing incidence1.切线[擦地]入射, 掠入射low incidence1.小冲角, 小攻角, 小迎角mean incidence1.平均冲角[攻角]negative incidence1.负倾角; 负冲角, 负攻角normal incidence1.正入射, 法线入射, 垂直入射oblique incidence1.斜入射perpendicular incidence1.直射positive incidence1.正攻[迎]角random incidence1.无规入射seasonal incidence1.季节性影响的方式sector incidence of taxes1.税收的部门归宿steady-state incidence1.定常迎角tax incidence1.租税归宿variable incidence1.可变倾角vertical incidence1.垂直入射incidence of duty1.关税负担者, 关税归宿incidence of light1.光线入射incidence of stabilizer1.稳定器的倾斜角incidence of taxation1.租税负担, 征税范围incidence of unemployment1.失业范围