单词：high-energy flashlamp
单词：high-energy flashlamp 相关文章
This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Engineers are always plugging away to get better energy efficiency out of our products -- like cars that guzzle less gas or light bulbs that burn brighter on f
Scientific American(八)月
讲解文本： lightning marriage 闪婚 Lucy is not a fan of lightning marriage. Lucy并不中意闪婚。 Lighting marriage can save the cost, including saving time and money. 闪婚能节约恋爱成本，包括金钱成本和时间成本。 flas
愉悦口语
Engineers are always plugging away to get better energy efficiency out of our products -- like cars that guzzle less gas or light bulbs that burn brighter on fewer watts. But even if we replaced all today's bulbs with energy-sipping LEDs, the world m
60秒科学
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Last month the journal Science reported that a Swedish company was planning on using the body heat generated by commuters in a Stockholm train station to
Scientific American(二)月
美国研究人员尝试从微风中获取能源 Solar chargers are effective only when the sunlight is relatively strong,but researchers at the Construction Engineering Research Laboratory in Illinois turned to the wind as another natural source of
VOA标准英语2015年(十二月)
LOS ANGELES, May 30 (Xinhua) -- The American Academy of Pediatrics (AAP) warned on Monday that children should keep away from energy drinks which may be dangerous for minors. The AAP urged young children and teens to avoid energy drinks entirely, say
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