单词：spherical calibration reflector
单词：spherical calibration reflector 相关文章
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用Mp3背六级单词
In 1970, the Soviet Union put a laser reflector on the moon, carried by a rover. A few months later, it disappeared. Some speculated that the rover had fallen into a crater or parked in such a way as to render the reflector inaccessible. Now after 40
Scientific American(四)月
Idiom: Lose your marbles ( go crazy ) Hit the book: The experiments by some scientists tell us that bats use the sunset to calibrate the Earth's magnetic field for use as a compass. But the story may be still more complicated. In birds, it's not the
趣味青春英语
The Five-hundred-meter wide Aperture Spherical Telescope, or FAST, is now operational in the mountains of Guizhou in southwest China. FAST has been designed to help Chinese researchers better understand our universe, as well as probe the cosmos for e
2016CRI中国国际广播电台
德国大众集团旗下奥迪28日承认，全球约210万辆奥迪品牌汽车卷入排放门丑闻，其中，西欧市场约有142万辆，德国市场约有57.7万辆，美国市场约有1.3万辆。 请看相关报道： The German car maker Au
英文语法词汇
The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for
2016CRI中国国际广播电台