{HEAD ~ The present invention} can be utilized, for example, in the industrial field of hydrogen production apparatuses for producing hydrogen by decomposing a metal hydride, and {TAIL ~ fuel cell systems} using hydrogen produced by the hydrogen production apparatuses as a fuel 
utilized in
{ HEAD ~ The present invention } can be utilized , for example , in the industrial field of hydrogen production apparatuses for producing hydrogen by decomposing a metal hydride , and { TAIL ~ fuel cell systems } using hydrogen produced by the hydrogen production apparatuses as a fuel
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