通讯: 1.(利用电讯设备传递消息) communication 短语和例子无线电通讯 radio communication; 红外线通讯 infrared ray communication; 微波通讯 microwave communication; 激光通讯 laser communication2.(报道消息的文章) news report; news dispatch;
导航: navigation; pathfinding; pilot; guide 短语和例子无线电导航 radio navigation; 天文导航 celestial navigation; 雷达导航 radar navigation; 给出港船舶导航 pilot the ships out; 由 ... 导航 under the pilotage of ..