公切線的英文:
common tangent

common是什么意思
adj. 普通的;一般的;通常的;通俗的;公共的,共有的;共同的
n. 普通;平民;公共地

  • international common
    國際公地
  • Commonness is happiness.
    平凡是福。
  • A common danger causes common action
    同仇敵愾
  • The series uses common components and common interior electronics.
    該系列采用普通的元件和內(nèi)部電子器件。
  • Common fame is liar
    盛名之下,其實難副
tangent是什么意思
n. 正切;直線區(qū)間;突兀的轉(zhuǎn)向;突然轉(zhuǎn)移話題

  • The direction is tangent to the trajectory.
    方向就是軌道的切線方向。
  • The tangent is a relatively important concept in trigonometry.
  • The graph of a concave function is always below its tangent.
    一個凹函數(shù)的圖象總在它的切線的下方。
  • Arrowheads on the lines indicate the direction in which the tangent is to be drawn
    電力線上的箭頭表示所要畫的切線方向。
  • Don't fly off at a tangent, we are talking about the money problem.
    不要扯別的,我們談的是那筆錢的問題。

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