英语词汇focal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
释义	fo.cal HfEJ7k[l, $5foJ- adj [not gradable] (specialized) The distance between a point where waves of light meet and the centre of a LENS is called the focal length. 焦距
随便看	vamp vampire vampish van van vandal vandalism vandalize vane vanguard vanilla vanish vanitory unit vanity vanity vanquish vantage point vapid vapidity vaporize vapour vapours variable variable variance

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