单词：export-leds
(export-led 的复数)
单词：export-leds 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
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
Science and Technolgy. 科技。 Visible-light communication. 可见光通信。 Tripping the light fantastic. 与光共舞。 A fast and cheap optical version of Wi-Fi is coming. 一个高速而廉价的光学Wi-Fi即将问世。 AMONG the many new
经济学人科技系列
A U.N. report finds two decades of trade liberalization have successfully removed many of the barriers that used to limit trade from the continent. But, the report by the U.N. Conference on Trade and Development says progress has been less than expe
VOA标准英语2008年（九月）
GUANGZHOU, Feb. 17 (Xinhua) -- Foreign trade in south China's Guangdong Province, the nation's key production and export base, declined 16.7 percent year-on-year in January, local authorities announced Friday. Exports totaled 39.05 billion U.S. dolla
英语新闻
Science and technology 科学技术 Visible-light communication 可见光通信 Tripping the light fantastic 与光共舞 A fast and cheap optical version of Wi-Fi is coming 一个高速而廉价的光学Wi-Fi即将问世 AMONG the many new gadgets u
经济学人科技系列