invariant [ɪnˈveriənt]

例句:

• For a system, Hamiltonian is invariant under any translation of spatial coordinates.
  对于一体系, 哈密算符在任何空间坐标变换下是不变的.
  
• The speed of light is an invariant constant.
  光速是一个不变常数.
  
• The first invariant of strain is independent of the coordinate system being used.
  第一应变不变量与所用的坐标系无关.
  
• Thus, they remain invariant under mutual transformation.
  来自SA
• They are universally invariant, conditions may change but the laws never vary.
  来自SA
• In my view, this explains the constant or invariant speed of light.
  来自SA