作为已灭绝物种或人类种族，尼安德特人与旧石器时代中期的工具有关。
An extinct species or race of human beings, Homo neanderthalensis, associated with Middle Paleolithic tools.
发现的石器工具符合旧石器时代中期，当尼安·德塔人出现的时候，并且和在西班牙发现的也类似。
Stone tools at the site correspond to the middle palaeolithic period, when Neanderthal man emerged, and resemble those found across Spain.
从七十年代中期起，展开了系统的高原考古工作，先后发掘了石器时代的文化遗址数十处。
Since the mid-1970s, systematic plateau archeological studies have been carried out and several dozen cultural sites of the Stone Age excavated.
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