单词：geographic data base
单词：geographic data base 相关文章
According to scientists from the National Snow and Ice Data Center and NASA, Arctic sea ice appears to have reached its minimum for the year at nearly 1.7 million square miles. A chilling fact, considering that this is only about 10 % more than the
国家地理2008年
Analog - Transmitting information that is characterized by continuously variable quantities (such as with AM or FM). This is different from digital transmission, which is characterized by discrete bit
电信英语
美国英国用愤怒的小鸟，谷歌地图来收集用户数据 WASHINGTON, Jan. 27 (Xinhua) -- U.S. and British spy agencies are tapping popular smartphone apps such as Angry Birds and Google Maps to collect users' personal information including
英语新闻
Imagine being able to insistently see what location you happen to be at, looked like 575 or a hundred years ago. A team of app developers wants to use today's ubiquitous digital camera culture to meet such appearing into the past possible. The app ca
2015年Scientific American(四)月
According to scientists from the National Snow and Ice Data Center and NASA, Arctic sea ice appears to have reached its minimum for the year at nearly 1.7 million square miles. A chilling fact, considering that this is only about 10 % more than the l
自然百科2008年
RACHEL MARTIN, HOST: President Trump has amended several of his positions since inauguration. One thing has remained consistent, though, Trump's belief that the United States is getting a raw deal from international trade agreements. STEVE INSKEEP, H
2017年NPR美国国家公共电台5月