海上移动业务 meaning in Chinese

maritime mobile service

Telecommunications - electromagnetic compatibility and radio spectrum matters - radiotelephone transmitters and receivers for the maritime mobile service operating in vhf bands - part 1 : technical characteristics and methods of measurement v1 . 3 . 1
电信.电磁兼容性和无线电频谱情况.工作在甚高频带的海上移动业务用无线电话传送机和接收机.第1部分:技术特性和测量方法