单词：fully reflecting surface
单词：fully reflecting surface 相关文章
But to fully forecast the floods, he needs a lot more atmospheric data. He believed robotic drone aircrafts developed for the military could continue to measure the air over the oceans, charting its temperature, wind and humidity. And the flight coul
探索与发现2014年
AS IT IS 2014-08-07 Rosetta Spacecraft Catches a Comet 罗塞塔航天器捕捉到一颗彗星 After a 10-year trip, a European spacecraft has, for the first time, entered an orbit around a comet. The European Space Agencys Rosetta spacecraft began a
2014年VOA慢速英语(八)月
A European robot probe has made the first, historic landing on a comet, but its status is uncertain after harpoons failed to anchor it to the surface. 欧洲一架机器人探测器在人来历史上首次成功在彗星上着陆，但是由于着陆器
英语新闻
New research suggests agriculture has greatly increased the amount of dust blowing off of West Africa, the world's largest source of atmospheric dust, and may have been one factor driving the decrease in rainfall in the region over the past several c
VOA标准英语2010年(七)月
We are rediscovering the enigmas(谜团) of the Moon and they're really in our own backyard Dr Jim Garvin, Nasa Goddard Space Flight Center Moon water has world in a twitter A surprising amount of water has been found to exist in the Moon's soil. Data
英语新闻
The American space agency NASA had expected its rover called Opportunity to operate on Mars for just 90 days. But the vehicle kept exploring for 15 years after landing on the red planet. Opportunity landed on Mars in 2004. Scientists finally lost con
2019年VOA慢速英语(二)月