We must protect the senile elderly people from unscrupulous business operators by using the adult guardianship system.

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Soryu class submarine of JMSDF
2009-03-20 Fri 00:00
Soryu class is a new style submarine which is the first AIP (Air-Independent Propulsion) submarine in the Japan Maritime Self Defense Force.
AIP allows a submarine to operate without the need to surface or use a snorkel to access atmospheric oxygen.
It is said that Soryu is an evolved form of the Oyashio class submarine.
The Oyashio is a class of Japanese diesel-electric submarine operated by the JMSDF. The submarines are larger than the earlier Harushio class submarines.
Soryu`s submerged displacement,4.200t, is the world's largest class as a conventionally-powered submarine.
The Soryu is equipped with the AC generator and the un-penetrating type periscope.
Speed of Soryu is 13 knots surfaced and 20 knots submerged .
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