Ushakov submitted his radical design, which included a conning tower and periscope, to senior officers in 1936.
尤沙科夫在1936年将它的原始想法向上级汇报，该想法还包含了一台了望塔和潜望镜。
Ushakov submitted his radical design, which included a conning tower and periscope, to senior officers in 1936.
尤沙科夫在1936年将它的原始想法向上级汇报，该想法还包含了一台了望塔和潜望镜。
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