《全球海上遇险安全系统》
Global Maritime Distress and Safety System
岸对船遇险警报
shore-to-ship distress alerting
采用全球海上遇险和安全系统
introduction of the GMDSS
船对岸遇险警报
ship-to-shore distress alerting
船对船遇险警报
ship-to-ship distress alerting
改进的遇险通信
improved distress communication
国际海事卫星备用遇险报警系统
INMARSAT back-up distress alerting network
国际遇险呼叫频率
International distress frequency
国际遇险呼救电码
international distress code
国际遇险呼救频率
International distress frequency
国际遇险频率
International distress frequency
Antislip
Anodizing determintion of second derivative
国际遇险频率国际遇险呼叫频率
International distress frequency
国际遇险频率国际遇险频率
International distress frequency
国际遇险信号
international distress
international distress signal
international distress code
海上遇险频道
maritime distress channel