radio-frequency communication

Along with our army workout system modulating, arms and equipment updating and military service system innovating, especially modern communication technique developing swiftly, the radio transmitter-receiver telegraph communication using as one of the main resorts of our army military communication is facing austere challenge.

随着我军编制体制调整、武器装备更新和兵役制度改革，特别是现代通信技术的迅猛发展，作为我军军事通信主要手段之一的无线电台报务通信正面临着严峻的挑战。

Aiming at improving the spectrum utilization efficiency via employing the cognitive radio technology into practical communication, the communication system in this paper can make better use of the spectrum resources with some tolerable loss of communication efficiency.

本系统凸显了认知无线电理论运用于实际通信中对频谱利用率的提升，使系统内的用户能够在损失少量通信实时性的情况下高效地利用频谱资源。

Pit radio button. Used to call the pit crew via radio communication.

通讯按钮. 经由无线电和维修站的技师沟通.

In the last 50 years, there have been great achievements in communication, such as radio, TV, computers, the Internet, and smartphones.

在过去的50年里,在通讯领域取得了巨大的成就,如收音机、电视、电脑、互联网和智能手机。

Software radio is regarded as a great revolution to the structure of traditional radio communication system.

软件无线电是对传统无线电通信体系结构的一次重大革新.

They underwent courses in radio communication, demolition, and sabotage.

他们接受了无线电通信 、 拆毁和破坏的课程.

Over the past years, we have witnessed a dramatic development of wireless communication technologies. The demand for radio spectrum resource increases ceaselessly.

在过去的十几年里，人们已经目睹了无线通信技术的迅猛发展，人们对于无限频谱资源的需求也在日益增长。

With the development of radio communication and mobile computing technologies, a new concept& mobile learning ( m-learning) comes out with its theory and practice.

近几年来，随着无线通信技术的发展和移动计算技术的进步，一个新的概念&移动学习（m-learning）逐渐纳入人们的研究视野，与之相关的理论研究和实践项目正随之展开。

In 1969, the Radio Amateur Satellite Corporation ( AMSAT) was created in order to foster ham radio enthusiasts' participation in space research and communication.

1969年，无线电业余卫星组织(AMSAT)成立，旨在培养无线电爱好者参与太空研究和交流。