LT I 线性时不变环节
We have studied three analysis methods of phase noise: linear time invariant(LTI), nonlinear time invariant(NTI) and linear phase time varying(LPTV).
接着，我们对三种相位噪声模型：线性时不变模型，非线性时不变模型和线性相位时变模型，进行了系统分析和概括。
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In this article, I will take a brief look at the tools in LT XML, but my main focus will be examining the RXP tree API as exposed through the pyRXP binding.
在本文中，我将简要概述 LT XML 中的工具，但是主要重点还是研究通过 pyRXP 绑定公开的 RXP 树 API。
I just have never heard a program speak of love. lt is a human emotion.
我从来没有听过一个程序在讲述爱情。爱是属于人类的情感。
As I taxied over the muddy steel matting of the runway, I got a wave and a grin from my wingman Lt. Rex Barber.
当我驾驶着飞机在泥泞的钢垫跑道上滑行时，我的僚机驾驶员向我边笑边挥手。
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