the purpose of this research is the protection of the submarine. the submarine tour to make a god of the sea, the wonderful natural scenery and the scenery tourism, in order to be able to go on.;the purpose of the protection. the carrier and is not a submarine, the manufacturing (production) are expensive, so do not even like to travel, enjoy the scenery, can be no place for the sea water in the 2cm ~ 100 cm a the can is a submarine.;therefore, the civil use, the success to the ship or train or car, a lot of people take the tourist bus travel, tourism, but in the depths of the sea to see the scenery tourism is not much.;the above is not a tour of the submarine on the reduction of the content.
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