time-variation

常见例句

And the energy of the eastern component is mostly increased with time-variation.
东向分量的能量随时间的变化以增加为主。
Experiments show that the technique is effective for processing unstable signals of time-variation spectra.
实验结果表明，该法是分析处理具有时变谱特性的非平稳信号的一种有效方法。
The problems summarized as below: it is a nonlinear and time-variation system with uncertainties, and it is more complex. So the high performance of this control system is required.
其主要表现在：系统越来越复杂、存在非线性、时变性和不确定性，从而对控制系统的各种性能要求越来越高。