考古学家根据人类使用器具的进步情形,划分旧石器时代(Old Stone Age)、新石器时代(New Stone Age)、 铜器时代 ( Bronze Age )以及铁器时代(Iron Age),而铁器的使用代表新技术的出现.
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N → same as Palaeolithic
This stone axe is a relic of the Old Stone Age.
这把石斧是旧石器时代的遗物。
These are the latest of the men that we call Palaeolithic(Old Stone Age) because they had only chipped implements.
这些就是我们所谓的旧石器时代最晚的人类，因为他们只有凿制而成的器具。
The material of human fossil, culture relic and zoolite in the Old Stone Age, which are excavated in the Northeast of China, are very abundant.
东北地区出土的旧石器时代人类化石、文化遗物和动物化石材料十分丰富。
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