trajectories

例句:

• The radiation is emitted tangent to these trajectories.
  来自Scientific American
• To answer this question, we need to plot trajectories of principal stresses.
  为了回答这个问题, 我们尚须画出主应力迹线图.
  
• In the space program the theory is used to determine spaceship trajectories.
  在空间计划中,这个理论用于确定飞船的轨道.
  
• The subject of orthogonal trajectories remained dormant.
  正交轨线的问题一直处于沉寂状态.
  
• These unquantifiable events change the trajectories of tight campaigns.
  来自NEWYORKER
• Patience, new trajectories and compression programs saved the mission.
  来自SA