| 单词 | prepared core | 
| 释义 | > as lemmasprepared core   prepared core  n. Archaeology a core (core n.1 5) of flint which has been pre-shaped so that a single final blow will detach a single large flake from which a tool can be made. ΚΠ 1917    Jrnl. Royal Anthropol. Inst. 47 399  				Many of them are either made from ordinary flakes or from flakes struck from a prepared core. 1959    J. D. Clark Prehist. Southern Afr. vi. 157  				The same basic prepared-core technique. 1998    R. Korisettar  & M. D. Petraglia Early Human Behaviour in Global Context i. 2  				Prepared core technologies increase in use and level of sophistication in later periods. < as lemmas | 
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