Any distress vessel in the all sea areas may use DSC device working on different frequency to send distress alert.

在各海区的遇险船舶均可使用不同频率的DSC设备进行遇险报警。

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The safety and production effected by ice-induced vibration have long been a serious distress problem imposed on production platform operating in Liao-dong Bay- the northern most area of Bohai Sea.

海冰引起的振动问题一直困扰着渤海尤其是辽东湾生产平台的生产和安全。

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