Therefore, development of a technology for the submarine to detect the anti-submarine helicopter by monitoring the helicopter radiated noise in underwater is urgently required.
为了提高水下潜艇对抗反潜直升机的能力，需要尽快解决水下对空探测的技术问题。
Aiming at the current status that helicopter uses single torpedo to attack submarine, a method of two torpedoes salvo for helicopter hovering attack is presented.
针对直升机投雷一般采用单雷射击的现状，提出了采用直升机悬停双雷齐射的方法。
A detailed research work had been made on helicopter 's anti-submarine control system.
对反潜直升机海上搜潜控制系统进行了详细的研究。
A detailed research work had been made on helicopter 's anti-submarine control system.
对反潜直升机海上搜潜控制系统进行了详细的研究。
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