正如我们大多数人认同的那样，氢能系统是解决化石燃料枯竭及其使用所造成的全球环境问题的长久之策。这本专题著作是一份恰逢其时的出版物，阐述了氢经济的机遇与挑战。我强烈向能源工程师、环保人士和决策者，以及所有关心人类前途与地球福祉的人推荐这本优秀的著作。
As most of us agree, Hydrogen Energy System is the permanent solution to the depletion of the fossil fuels and the global environmental problems caused by their utilization. The subject matter book is a timely publication presenting the opportunities and challenges for the Hydrogen Economy. I strongly recommend this excellent book to energy engineers, environmentalists and decision makers, as well as those interested in the future of humankind and the welfare of the planet earth.