短語詞組短語aperture opening ratio 開口率numerical aperture utilization ratio 數(shù)值孔徑利用率focal aperture variation ratio 變焦倍比sensor aperture opening ratio 傳感器開口率effective aperture ratio 有效孔徑比aperture to channel ratio 通道比aperture ratio of honeycomb 蜂窩的孔徑比aperture ratio detail 口徑筆head aperture ratio 開口率 返回 aperture ratio