Submarines pdf epub mobi txt 电子书下载 2024

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Ian Graham

Gloucester Pr

Feb-89

69.00

简装

9780531171530

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发表于2024-09-20

Submarines epub 下载 mobi 下载 pdf 下载 txt 电子书下载 2024

Submarines pdf epub mobi txt 电子书下载 2024

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Submarinesï¼Œ or "subs"ï¼Œ are boats that can travel underwaterï¼Œ They are built mainly for use by navies for attack and defense in war. But they are also used for deep sea exploration. In the futureï¼Œ they may SSN SWIFTSURE CLASS Rear stabilizing fin Inner hull be used as cargo vessels. Submarines can dive hundreï¼Œ meters under the seaï¼Œ where crushing pressure of water is grea for strengthï¼Œ the bodyï¼Œ or hullï¼Œ of sub~ï¼Œ a double-layer designï¼Œ with one inside the other. The outer hull is sn~ and cigar-shaped to allow .Engine room Reactor contr~ Propeller shaft Aft trim tank Circulating water inlet Nuclear reactor compartment

Submarines 下载 mobi epub pdf txt 电子书