The reaction of adsorption was an spontaneous, endothermal process. 該吸附反應為自發(fā)的吸熱過(guò)程。
The results indicated that the process was exothermic at a low temperature and endothermic at a high temperature. 結果表明，低溫改質(zhì)為放熱過(guò)程，高溫改質(zhì)為吸熱過(guò)程。
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