Naturally, the Allies'anti submarine warfare was improved during the war.

当然, 盟军反反潜作战是战争期间改善.

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The requirements of ocean development and anti - submarine warfare is the main motivation of sonar technology study.

海洋开发和反潜战的需求是推动声纳技术开发的巨大动力.

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Model 0111 s had hull - mounted, high frequency, active search sonar with three five - tubes RBU 1200 anti - submarine mortars.

0111S型有一套舰体安装 、 高频 、 主动搜寻StagEar声纳和三具五 - 管RBU1200型反潜迫击炮.

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