Navy team is bringing in high-tech underwater listening devices to detect pings from data recorders.

美国海军人员正利用高科技水下探测仪搜寻“黑匣子”发出的信号。

youdao

Navy team is bringing in high-tech underwater listening devices to detect pings from data recorders.

美国海军人员正利用高科技水下探测仪搜寻“黑匣子”发出的信号。

youdao