The U. S. Navy plans to deploy a new submarine detection system, known as Low Frequency Active Sonar (LFA), throughout 80% of the world's oceans.
在世界的 80% 的大海各处,美国海军计划部署一个新的海中发现系统,即是低的频率活跃的声纳 (LFA) 。
The U. S. Navy plans to deploy a new submarine detection system, known as Low Frequency Active Sonar (LFA), throughout 80% of the world's oceans.
在世界的 80% 的大海各处,美国海军计划部署一个新的海中发现系统,即是低的频率活跃的声纳 (LFA) 。
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