talk-ringing key

In this paper, we'll talk about some key technologies in microwave SDH: multi-level coding modulation;

本文简要介绍了SDH数字微波传输系统中采用的几项关键技术：高性能高速多状态调制解调技术；

At last, we talk about the key technique of power line communication, OFDM ( short for orthogonal frequency division multiplexing), and implement the simulation of transmission and reception using MATLAB.

文中最后，讨论了电力线载波的关键技术&OFDM正交频分复用技术，并应用MATLAB实现了信号收发器的仿真。

＂ The key to successful small talk is learning how to connect with others, not just communicate with them ．＂

"成功进行闲聊的关键是学会如何与他人沟通,而不仅仅是与他人沟通。"

Foreign language teaching plays an important role in learner's second language acquisition and teacher talk is the key to organizing class and fostering students'communicative competence.

外语课堂教学是学习者习得第二语言的重要环节，教师话语是组织课堂教学、培养学生交际能力的关键。

There are a number of institutions and I will only talk about the key ones today.

欧盟有许多机构，今天我只介绍几个重要的组织。