| 1. | Chapter four dwells on board - shore communication technique , the real - time transmission of shipping marine . the satellite communication is the main means in board - shore communication , the communication technique for maritime affairs is maritime satellite communication system . its techniques include telex , telegram , telephone , and email , among with email is the best means for conveying large amount of data
第四章是船舶航海信息的实时传输? ?船岸通信技术，卫星通信是船岸通信的主要方式，用于海事的通信为海事卫星通信系统，具体技术可分为电传、电报、电话、 email等方式，对于大量数据的传送采用email方式是较好的选择。 |
