distress signal

遇难信号,呼救信号

同：	[n.] distress call

A distress rocket,ie used to signal for help
呼救信号火箭.收藏
When a vessel or installation in the vicinity of the scene of an accident receives a distress signal or discovers that people’s lives are endangered
事故现场附近的船舶、设施，收到求救信号或发现有人遭遇生命危险时收藏
The survivors of the shipwreck transmitted a distress signal every hour.
失事船只的幸存者每小时发出一次遇难信号。收藏

an internationally recognized signal sent out by a ship or plane indicating that help is needed
[同] distress call, distress signal

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