抛物面反射式传声器

parabolic

offset feed type parabolic antenna【电讯】

parabolic folium【数】

parabolic reflector (parabolic mirror) , optical

parabolic mirror【天】;parabolic reflector【光】;paraboloidal reflector【光】

compound parabolic collector【能源】

method of parabola【数】;parabolic method【数】

parabolic motion; constant acceleration and deceleration motion