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focal中文是什么意思

发音:  
用"focal"造句"focal"怎么读"focal" in a sentence"focal"的同义词

中文翻译手机手机版

  • adj.
    1.【物理学】焦点的,(集中)在点上的,有焦点的。
    2.【医学】病灶的,病灶性的。
    adv.
    -ly

例句与用法

  • A typical lens has a focal length(f)of 625 mm .
    常见镜头的焦距(f)为625毫米。
  • The focal depth was about 6 mi .
    震源深度约6哩。
  • As a result, the focal lengths in these planes will be different .
    结果,这两个平面内的焦距将不同。
  • The focal length of a given lens is different for different colors .
    一个特定的透镜的焦距因颜色的不同而不同。
  • The baker super-schmidt camera can operate with extremely low focal ratios .
    Baker超施密特照相机则能以非常低的焦比工作。
  • The focal length of the camera lens plays an important role in photo criteria .
    摄影机镜头的焦距在摄影规范中起着重要的作用。
  • The field of view can be limited by inserting a stop in the focal plane of microscope .
    可以在显微镜的焦平面上加装一光阑,从而限制视区。
  • The unsteadiness of air becomes prohibitive only if instruments with large focal length are used .
    只有在使用长焦距的仪器时,才不允许空气的不稳定。
  • The mirror of an astronomical telescope forms at its focal point an image of a star on the axis of the mirror .
    天文望远镜把在镜轴上的星体成象在焦点上。
  • The focal length of the conelensing lens should be such that the image of the source just fills the projecting lens .
    聚光透镜的焦距应使光源的像正好照满放映透镜。
  • 更多例句:  1  2  3  4  5
用"focal"造句  

英文解释

  • of or relating to a focus; "focal length"

  • having or localized centrally at a focus; "focal point"; "focal infection"

其他语种

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