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 hydrogen produced by {HEAD ~ the hydrogen production apparatuses} as {TAIL ~ a fuel} 
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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 hydrogen produced by { HEAD ~ the hydrogen production apparatuses } as { TAIL ~ a fuel }
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