distress frequency是什么意思

网络释义

1)distress frequency,遇险呼救频率2)distress frequency,遇险（呼救）频率3)in Distress,遇险4)in danger,海上遇险5)report in distress,遇险报告6)survivor,遇险者

The Research on Pre-planned Emergency Response Scheme for Ferry Ship in Distress;

海上客船遇险应急响应预案研究