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常见镜头的焦距 ( f ) 为625毫米.用英语怎么说？

常见镜头的焦距 ( f ) 为625毫米.

A typical lens has a focal length ( f ) of 625 mm.

相关词汇
typical lens has focal length of mm

typical

adj. 典型的，特有的或特别的，代表性的；

lens

n. 透镜，镜头，眼睛中的水晶体，隐形眼镜，汽车的灯玻璃；

has

v. 有( have的第三人称单数 )，（亲属关系中）接受，拿，买到；

focal

adj. 焦点的，有焦点的，集中在点上的，病灶的，病灶性的；

length

n. 长度，长，时间的长短，（语）音长，一段，一节；

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

mm

abbr. =megameter，=millimeter，=millimicron；
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