[!--temp.top--]

新能源·看点

被引量 : 0次 | 上传用户:hyron2005
'; } ?>
【作 者】
'; foreach($pd_record as $writer){ $str .= ''.$writer. ' '; } $str = trim($str,',').'
'; } echo $str; ?>
【机 构】
'.$navinfor[author_org].'
'; } ?>
【出 处】
'.$navinfor[befrom].'
'; } ?>
【发表日期】
'.$navinfor[year].'年'.$navinfor[issue_num].'期
'; } ?>
【关键词】
'; foreach($pd_record as $keyboard){ $str .= ''.$keyboard. ' '; } $str = trim($str,',').'
'; } echo $str; ?>
【基金项目】
'.$navinfor[fund_info].'
'; } ?>
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
人类一百多万年进化发展的过程,就是一部不断向自然索取更多能源的历 史。按现在的开采水平估计,世界上的煤、油、天燃气资源在几十年内逐渐枯 竭,并带来严重的环境污染问题,从而造成冰雪消融,冰川退缩,全球气候变 暖。能源短缺和环境保护是21世纪经济发展和能源领域最重要的课题。 纵观人类利用能源的历史,可以清楚地看到,每一种新能源的发现和利用, 都把人类支配自然的能力提高到一新的水平。走进新世纪,能源科学技术将会 有怎样的突破? The evolution of mankind over a million years is a history of constantly seeking more energy from nature. According to the current exploitation level, the world’s coal, oil and natural gas resources are gradually depleted within a few decades and bring about serious environmental pollution problems, resulting in ice melting, glacial retreat, and global warming. Energy shortages and environmental protection are the most important issues in the economic development and energy sectors in the 21st century. Looking at the history of human use of energy, we can clearly see that the discovery and utilization of each new energy source all take mankind’s ability to dominate nature to a new level. Into the new century, energy science and technology will have what kind of breakthrough?
其他文献
[e:loop={"SELECT * FROM phome_ecms_lunwen WHERE id BETWEEN $js AND $ks ",0,24,0}]
'.$keyboard. ''; } $str = trim($str,',').'
'; } echo $str; ?>
[/e:loop]