求翻译：进入21世纪后，人类目前技术可开发的能源资源已将面临严重不足的危机，当今煤、石油和天然气等矿石燃料资源日益枯竭，甚至不能维持几十年。但随着社会的不断发展，对能源的需要求日益扩大 ，为使人类生存得到永久维持，我认为未来清洁能源不能完全替代矿石燃料，只能作为一种补充。是什么意思？

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Since the beginning of the 21st century, mankind will be able to develop the technology of energy resources will be facing a serious crisis of inadequate has today, such as coal, oil and natural gas resources are increasingly depleted ore fuels, unable even to maintain several 10. However, with the

After enters for the 21st century, the humanity the technical potential energy resources have faced the serious insufficient crisis at present, now ore fuel resources and so on coal, petroleum and natural gas dry up day by day, even cannot maintain for several dozens years.But along with society's u

After entering the 21st century, human is technology development of energy resources has been facing a serious shortage of crisis, today's fossil fuels such as coal, oil and gas resources increasingly depleted or even maintained for decades. But with the development of society, seeking growing needs

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