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この意匠に係る物品は、使用状態を示す各参考図に示すように、例えば、高速道路や鉄道の高架構造体に設置され、鉄道や車両等の走行に伴う騒音を遮音及び吸音するために用いられるものである。As shown in each reference diagram showing the state of use, articles related to this design are installed on elevated structures of expressways and railways, for example, and are used to insulate and absorb noise caused by the running of railways, vehicles, etc. It is something that can be done.