单词	单位脉波
释义	单位脉波unit pulse
随便看	invariant continuation invariant curve invariant cycle invariant decision function invariant decision problem invariant decomposition invariant definition invariant delta-function invariant derivative invariant differential invariant differential equation invariant differential form invariant differential operator invariant dimension property invariant distribution function invariant divisor invariant domain invariant element invariant element of transformation invariant embedding approach invariant embedding solution invariant equation invariant equilibrium invariant estimation invariant event