{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 fuel cell systems using {TAIL ~ hydrogen} produced by the hydrogen production apparatuses as a fuel 
{ 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 fuel cell systems using { TAIL ~ hydrogen } produced by the hydrogen production apparatuses as a fuel
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