单词：photovoltaic radiation detector
单词：photovoltaic radiation detector 相关文章
AS IT IS 2014-08-02 Americans Test Seawater for Fukushima Radiation 美国欲测试福岛辐射值 It has been more than three years since the nuclear accident at the Fukushima power station in Japan. Millions of liters of radioactive cooling water f
2014年VOA慢速英语(八)月
This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. One of the problems with large-scale solar power plants is that they require a huge amount of space. To rise above that problem Israeli researchers rece
Scientific American(三)月
Idiom: On good terms 人与人之间关系融洽，和谐 Hit the book: Photovoltaic Face up to Fossil fuel Catastrophic Destruction Burning question Conversion Promising
趣味青春英语
But they never got there. The first disappeared into deep space. Another missed its target when its coordinates were confused. One NASA control center was working in metric, the other in feet and inch
火星生命
Compared to the dose level of a medical chest x-ray, a backscatter scan is thousands of times lower. Since the Christmas Day attempted bombing of a U.S. airliner, airports are looking for ways to tighten security. One method being adopted by some and
VOA标准英语2010年(三月)
Public opinion polls suggest most Americans favor full body scanners as a way to protect against terror attacks on commercial airliners. The benefits of scanners are being debated in a number of countries. Some groups have raised privacy issues. But
VOA标准英语2010年(一月)