特殊用法code invariance1.电码恒定性ga(u)ge invariance1.【电】规范不变性geometric(al) invariance1.几何不变性orientational invariance1.定向不变性projective invariance1.射影不变性relativistic invariance1.相对论性不变性statistical invariance1.统计不变性topological invariance1.拓扑不变性