ray

• The classical path would then correspond to a ray as in optics .
  所以经典路径就与光学中的光线相对应。
• This interaction can produce gamma rays or secondary protons .
  这种互相作用能够产生射线或第二代质子。
• We introduce a negative lens which will diverge the rays a bit .
  我们用一块负透镜，它将使光线发散一些。
• I've always thought that ray would have made a wonderful rector .
  我总觉得雷本来可以做一个呱呱叫的牧师。
• Recall that the angles are positive if the ray has a positive slope .
  记住，若光线之斜率为正则角度为正。
• The absorption is most effective for the shorter wave length rays .
  对于短波部分来说，吸收效应尤为明显。
• Those rays which are near the axis are sometimes called paraxial rays .
  靠近轴的那些光线有时叫作近轴光线。
• His blue eyes were boring into space like a powerful electric ray .
  他那对蓝眼睛象一股强烈的电光掠过空间。
• The so-called visual display unit is in fact a cathode ray tube .
  所谓可见显示装置实际上是一个阴极射线管。
• In a vacuum, gamma rays travel in straight lines with the speed of light .
  真空中，射线以光速沿直线前进。