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Semi-submarine : ウィキペディア英語版 | Semi-submarine
Semi-submarines are submersibles vessels that are capable of diving, similarly to submarines. However, unlike submarines, they cannot be entirely submerged below the surface of the water. == Design == The most common design is one similar to a ship. The passenger cabin is relatively low, a few meters below sea level. The cabin is equipped with large windows into the water. The passengers can observe the marine environment that is passed during the voyage. There are significant differences between a submarine and a semi-submarine from an engineering point of view. Submarines are human occupied pressure vessels, while pressure concerns apply to a lesser extent to semi-submarines. As the pressure close to the water surface is relatively low, the viewing windows can be bigger. In some advanced designs the windows enclose the majority of the submersed hull, creating an experience comparable to scuba diving. Customers can leave the submerged cabin for the unsubmerged deck at any time.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Semi-submarine」の詳細全文を読む
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