“The world’s first deep-sea radar system was developed by which nation?”

"China developed the world’s first deep-sea radar system advancing maritime surveillance and security. This technology enhances detection of underwater objects supporting navigation defense and resource exploration. Its development underscores China’s leadership in cutting-edge technology and maritime innovation. Studying this achievement highlights the importance of radar systems in modern geopolitics and ocean management. It reflects China’s strategic focus on expanding technological capabilities influencing global maritime security and scientific research in deep-sea environments."