英语词汇front focal distance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	front focal distance
释义	front focal distance 简明释义前焦距网络释义 1 ?前焦距 ... front fillet welding \|\| 正面角焊 front focal distance \|\| 前焦距 front focal length \|\| 前焦距 ... 短语 1 front vertex focal distance 前顶焦距 ; 前顶点焦距 ; 前表面镜双语例句 1 The position of the image and the amplitude variation in the optical field are associated with the focus and the distance from the object to the front focal plane of the lens system. 象的空间位置和光场振幅的变化与透镜系统的焦距以及物体距焦平面的位置有关。
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