便携式引航仪 portable navigating instrument引航就是导航 从下文来看 应该指船舶导航 所以应用航海（navigating）用于播发DGNSS校正信号 Applied to broadcasting correction signals of DGNSS用于船舶报告系统 Applied to ship reporting system用于播发实时气象水文信息 Applied to broadcasting real time meteorological and hydrological information航次相关等信息的进一步应用 Further application of voyage-related information
Portable Instrument PilotCorrection signal for broadcast DGNSSReporting system for shipsUsed to broadcast real-time meteorological and hydrological informationVoyage related information such as the further application
Portable pilotage apparatusDGNSS correction signal for broadcastFor Marine report systemFor real-time weather hydrological information broadcastSuch information related to the further voyagePortable Instrument PilotCorrection signal for broadcast DGNSSReporting system for shipsUsed to broadcast real-time meteorological and hydrological informationVoyage related information such as the further application
