英语词汇“focal ratio”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	focal ratio
释义	focal ratio ˈfəʊkəlˈreiʃiəu 基本英英近义反义 n.焦距比数 Noun: the ratio of the focal length to the diameter of a camera lens system近义词 speed速度f number焦距比数stop number光圈数
随便看	loadabilities loadability load ability loadability degree loadability margin loadable microcode loadable module loadable routine load a boat load abosolute load absorption load a camera load a car load a cargo load a carriage Load a cart load a cart with packages load acceleration constant load acceptance test load accept mode Load Access Rights load accumulator load accumulator instruction load accumultor instruction load a computer