... 求援信号装置 distress signal warning device 应急求援活动 crash-rescue operations 援助国；援助方 aid givers ...
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crash rescue operations 应急救援活动
crash-rescue operations
应急救援行动
以上为机器翻译结果，长、整句建议使用 人工翻译 。
One of CARL VINSON's helicopters, which was airborne at the time of the crash, was immediately dispatched to conduct rescue operations.
卡尔vinson的直升机的当中一个，是空中在崩溃之时，立刻被派遣进行救援活动。
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