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单词
龙骨
释义
龙骨
Encyclopedia
医学
重镇安神药
释
bone fossil of big mammals
龙骨
重镇安神药。又称煅龙骨。始载于《神农本草经》。古代哺乳类动物象类、犀类、鹿类、三趾马、牛类等骨骼的化石。
理学
鸟纲(化石)
释
keel
龙骨
地质学特别是古生物学领域,是古代脊椎动物的骨骼和牙齿化石的统称,特别是第三纪后期和第四纪的哺乳类(如象、犀牛、马、鹿、骆驼、羚羊等)的骨骼和牙齿化石。
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risk assessment of cancer
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