• 1. echo cancellation technique: 回音消除技术 | 回波消除技术

• 1.The echo cancellation technique is now widely used to implement the full-duplex communication in almost all telephone privacy systems.
  几乎所有的电话保密系统都使用回波抵消技术来实现全双工通信。
  dict.yoduao.com
• 2.So acoustic echo cancellation (AEC) technique has become a hot issue of competition in the famous communication company all over the world.
  因此，回波消除技术也就成为世界各大通讯公司竞争的热点技术之一。
  dict.yoduao.com

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