focal length
noun /ˌfəʊkl ˈleŋkθ/
/ˌfəʊkl ˈleŋkθ/
(physics- the distance between the centre of a mirror or a lens and its focus
焦距
词汇 | focal length |
释义 | focal lengthnoun /ˌfəʊkl ˈleŋkθ/ /ˌfəʊkl ˈleŋkθ/ (physics
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