不过为了保持优势，美国需强化其前沿基地，在导弹防御和潜艇方面投入资金，并对抗中国在非对称电子战、网络战以及太空战领域的能力。
But to retain that advantage, America will need to harden its forward bases, invest in missile defence and submarines and counter China’s capacity in asymmetric electronic, cyber and space warfare.
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。
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.
1970年一种新的反潜型进入建造之内用于对抗海岸浅水区域潜艇威胁。
To counter submarine threats in the coastal shallow water in the 1970s a new anti-submarine model was introduced into production.
针对现代海战条件下潜艇水声对抗效能问题，分析了影响潜艇水声对抗效能的因素，给出评价其效能的指标体系。
Factors of acoustic warfare effectiveness are analyzed. A system of effectiveness evaluation is built to deal with problems in modern sea battle.
针对现代海战条件下潜艇水声对抗效能问题，分析了影响潜艇水声对抗效能的因素，给出评价其效能的指标体系。
Factors of acoustic warfare effectiveness are analyzed. A system of effectiveness evaluation is built to deal with problems in modern sea battle.
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