cutoffn.近路；切断cutoff porosity截止孔隙度cutoff altitude停车高度(关闭发动机时的高度),停止供油高度cutoff solenoid断路电磁线圈cutoff boundary截断边界cutoff limiting截止限幅cutoff rigidity截止刚度cutoff relation截断因子cutoff interval停车时间(间隔)cutoff frequency截止频率cutoff waveguide截止波导