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- 更多網(wǎng)絡(luò)例句與bronze age相關(guān)的網(wǎng)絡(luò)例句 [注：此內(nèi)容來源于網(wǎng)絡(luò)18人人黄色视频在线观看，僅供參考]
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In the Stone Age and Bronze Age, the Iron Age history of mankind has experienced.
在石器和青銅時代之后在线观看黄A片免费AV网站，人類歷史經(jīng)歷了鐵器時代国产嫖娼妓院视频网站。
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The invention and application of the bronze mark that the mankind enter Bronze Age from the Neolithic Age .
青銅的發(fā)明與應(yīng)用標志著人類從新石器時代進入了青銅時代超碰插。
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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.
但是隨著時間的推移亚洲三级片在线网址，從大汶口文化到龍山文化，Pb的富集系數(shù)有明顯逐步上升的趨勢欧美wwwxx，表明遺址剖面中的Pb很可能與原始社會中期發(fā)展起來的冶金活動有關(guān)8090精品无码久久久。5 050～4 000 cal a BP間，中國先后經(jīng)歷了石器時代一级国产欧美日产、銅石并用時代亚洲欧美另类69XXXXX动漫，到最后進入青銅時代，這個過程中銅資源利用越來越多導(dǎo)致產(chǎn)生的大氣粉塵鉛越來越多欧美男女性爱视频中文免费，很可能是YC1剖面中Pb富集系數(shù)逐步增長的主要原因18未成禁片一级毛片喷水。
- 更多網(wǎng)絡(luò)解釋與bronze age相關(guān)的網(wǎng)絡(luò)解釋 [注：此內(nèi)容來源于網(wǎng)絡(luò)，僅供參考]
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Bronze Age：銅器時代
考古學(xué)家根據(jù)人類使用器具的進步情形,劃分舊石器時代(Old Stone Age)欧美午夜性、新石器時代(New Stone Age)免费视频在线观看4444、銅器時代(Bronze Age)以及鐵器時代(Iron Age),而鐵器的使用代表新技術(shù)的出現(xiàn).
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Bronze Age pottery：青銅器時代陶器
Bronze Age 青銅器時代,青銅時代,銅器時代 | Bronze Age pottery 青銅器時代陶器 | bronze alloy 青銅合金
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The Stone Age ~The Bronze Age：石器時代 ~ 青銅時代
Agricultural Civilization 農(nóng)業(yè)文明 | The Stone Age ~The Bronze Age 石器時代 ~ 青銅時代 | Pharaoh 法老