英语词汇focal length怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	focal length
释义	focal lengthn.（名词）abbr. f, FL【缩写】 The distance from the surface of a lens or mirror to its focal point. Also called focal distance ,focus 焦距：从透镜或面镜的表面到焦点的距离也作 focal distance,focus
随便看	milliard milliards milliary millibar millicurie millieme millifarad Milligan College milligram millihenry Millikan Millikin University millilambert milliliter millilitre millim millime millimes millimeter millimetre millimicron millimole milline milliner millineries

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