单词:
单词: 相关文章
By Caty Weaver Broadcast: August: 22 2003 This is Steve Ember with the VOA Special English Environment Report. Last week millions of people in the United States and Canada suddenly found themselves in
The winter solstice events at Maeshowe demonstrate 梅萧韦古墓葬的冬至事件 an intimate and precise knowledge of 展现了古人 the sun's movements through the sky. 对太阳运行轨迹的精确了解 It was the first step on ourjourney to
JANET T. MONOHAN 62 White Cloud lane, Waverly, NH 86724 (426) 857-4567 monohan@jxue.com JOB OBJECTIVE Electronics engineer in Los Angeles BACKGROUND SUMMARY Over eleven years of extensive computer/electronics experience. Versed in both digital and an
India Blackout Highlights Power Problems in Developing Countries In recent years, developing countries have made huge investments to expand power supply networks, but India's outages - which left 670 million people without power this week - demonstra
Power Your Laptop by Taking a Walk Scientists at the University of Wisconsin-Madison have developed a technology that turns human motion into electricity. In this week's journal Nature Communications, they describe how to power a cell phone or other
美国能源公司:清洁科技有利可图 Even before the U.S. Environmental Protection Agency released its proposed rules this month for reducing carbon emissions from the nations power plants, energy companies began converting older plants to c