单词	f值
释义	f值医f value；f-number
随便看	movable roundel light unit movable rubber belt conveyor movable runner movables movable sand heap movables and immovables account movable sash movable scaffold movable scaffolding movable scaffolding form Movable Scaffolding System movable scaffold system method movable scale movable scale barometer movable-scale barometer movable-scale indicator movable scene movable scotch blocks movable scotch blocks, signal, point movable screen movable screw conveyor Movable Search System movable section movable segments Movable seismic array