单词	孔径比--光圈比
释义	孔径比；光圈比aperture ratio
随便看	a bowing acquaintance a bowl for containing cups a bowl of rice a bow long bent at last waxes a bow long bent grows weak. a bow long bent at last waxes weak. a bow long bent at last waxes weak. (或 a bow long bent grows weak.) a bow made of horn a bow scull a bow shot a bow string a bow unbent a bow unstrung a box a box and needle a box of a box of birds a box of books a box of dominoes a box of lucifer matches a box of teeth a box of tricks a box on the ear, with the open hand a box with drawers a boy in buttons a boyish disposition still preserved