英语词汇focal track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 track
释义	focal track 简明释义焦点轨迹：在光学系统中，光线经过聚焦后形成的轨迹。网络释义 1 [核]?焦点轨迹 ... focal spot of X ray X射线焦点 focal track 焦点轨迹 focused grid 会聚滤线栅 ... 双语例句 1 Focal depth plays an important role in optical storage systems, and high focal depth makes the focusing servo system easy to track the disk surface. 焦深在高密度光盘存储系统中具有十分重要的作用，大焦深可以使调焦伺服系统容易跟踪盘面。
随便看	by the bows by the by by the bye by the candle by the close of by the day by the deep by the dozen by the ears by the end by the end of by the end of the week by the exercise of by the eye by the favour of by the feel by the finger of God by the force of by-the-glass by the good offices of by the grace of god by the great by the gross by the hand by the hand of

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