| 释义 |
全球海上遇险及安全系统global maritime distress and safety system {= GMDSS}全球海上遇险及安全系统GMDSS {=Global Maritime Distress and Safety System}全球海上遇险及安全系统global maritime distress and safety system{=GMDSS}全球海上遇险及安全系统GMDSS{global maritime distress and safety system}全球海上遇险及安全系统global maritime distress and safety system |