- 更多网络例句与铜石并用时代的相关的网络例句 [注：此内容来源于网络，仅供参考]
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Results show that Pb enrichment factors varied from 1.0～1.8 in the cultural layers, and were not quite high. However, with the history going on from the Dawenkou Culture to the Longshan Culture, the Pb enrichment factor displayed an obvious rising trend, which indicated that the Pb in the cultural layers was probably associated with the development of metallurgic activities in the middle stage of the primitive society. From 5 050 cal a BP to 4 000 cal a BP, China underwent Stone Age, Chalcolithic Age and Bronze Age in sequence. Pb dust in the atmosphere increased with intensifying utilization of copper resources, which was probably the main cause of the rising enrichment factor in the cultural layers.
但是随着时间的推移，从大汶口文化到龙山文化，Pb的富集系数有明显逐步上升的趋势，表明遗址剖面中的Pb很可能与原始社会中期发展起来的冶金活动有关。5 050～4 000 cal a BP间，中国先后经历了石器时代、铜石并用时代，到最后进入青铜时代，这个过程中铜资源利用越来越多导致产生的大气粉尘铅越来越多，很可能是YC1剖面中Pb富集系数逐步增长的主要原因。
- 更多网络解释与铜石并用时代的相关的网络解释 [注：此内容来源于网络，仅供参考]
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Bronze Age：青铜时代
青铜时代 (Bronze Age)是以青铜作为制造工具、用具和武器的重要原料的人类物质文化发展阶段. 继铜石并用时代之后,在铁器时代之前,在世界范围内的编年范围大约是从公元前第4千年至前第1千年. 在这期间,世界上的青铜铸造业形成几个重要的地区,
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Chalcolithic：红铜时代的,铜石并用时代的
chalcolite | 铜铀云母 | Chalcolithic | 红铜时代的,铜石并用时代的 | chalcomenite | 蓝硒铜矿
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chalcolithic age：铜石并用时代
但已大大改善了铁制品的使用性能但考古和文物工作者在在涿郡人数千年坚持指认的蚩尤寨遗址上陆续采集到了铜镞、石镞和其他新石器标本, 证明这里曾经是铜石并用时代(Chalcolithic Age)的古战场[12]2
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Chalcolithic：红铜时代的,铜石并用时代的
chalcolite || 铜铀云母 | Chalcolithic || 红铜时代的,铜石并用时代的 | chalcomenite || 蓝硒铜矿