... astronomic almanac 天文年历 astronomic year 天文年 Astronomic background 天文学背景 ...
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astronomic year book 天文年历
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To measure astronomic distances one takes as a unit that distance which light travels in a year.
为了度量天文距离，人们把光在一年中走过的距离当作一个距离单位。
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Last year, a U.S. military computer reached the astronomic processing power of more than 1 quadrillion calculations per second.
CENTERFORSECURITYPOLICY: The silent cyberwar
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