a echo order 续订订单
first-order sea echo 一阶回波
first order sea echo 一阶海洋回波
second order sea echo 二阶海面回波
In order to keep implementation simple, I start by creating a very simple Echo Service.
为了保持实现的简单化，我首先创建一个非常简单的Echo Service。
Lust so, I believe, the experience of beauty is an echo of the order and power that permeate the universe.
这是如此的让人渴望，我相信美的体验就是弥漫宇宙的秩序和力量的回声。
The results show that: (1) In order to improve the effect of adaptive filtering in acoustic echo canceling, the important path is to adopt new hardware and new algorithm.
回波消除中的自适应滤波研究结果表明：（1）由于受到硬件和自适应算法本身的制约，要从根本上提高回波消除中自适应滤波效果，选用新的硬件和新的算法是重要途径。
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