The problem with present methods of electrocatalytic hydrogen production is that most of them employ platinum-based catalysts, which are prohibitively expensive for practical applications.
年の世界金融危機は中国に、現行制度の脆弱さと、自国財政が米国に依存している度合いを思い知らせた。
The global financialcrisis of 2008-9 revealed to China the fragility of the present system and the extent to which its own finances are beholden to America.
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