transitions [træn'zɪʃnz]

例句:

• That was a positive feedback important for glacial-interglacial transitions.
  来自SA
• Both ionization and excitation lead to eletronic transitions that may be the emission of light.
  电离和激发都将导致可能伴随有光发射的电子跃迁.
  
• Forbidden transitions are those for which dipole radiative transitions are not allowed by the selection rules.
  禁戒跃迁指的是选择定则所不容许的偶极辐射跃迁.
  
• The smallest energy transitions are between rotational levels; the next smallest between vibrational levels.
  在转动能级之间的能量跃迁最小, 其次是振动能级之间的跃迁.
  
• Part of the transitions had to do with image.
  来自NEWYORKER
• Smooth transitions are a big part of the plan.
  来自WSJ