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航天学
研究航天基本原理和指导航天工程实践的综合性技术科学。又称宇宙航行学或宇航学。
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航天学,宇宙航空学,星际航空学
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medicinal resources cell engineering
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Medicine for prevention and treatment of stress reaction in wartime
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medicine in Qin and Han Dynasties
medicine in Qing Dynasty
medicine in Song Dynasty
medicine in Spring and Autumn and Warring states period
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medicine in the Liao,Xia,Jin and Yuan dynasties
medicine in the Ming dynasty
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medicine in Xia,Shang and Western Zhou Dynasties
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