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青铜是金属冶炼史上最早的合金,最早可追溯至6000年前的古巴比伦两河流域文明。它的出现,标志着人类从新石器时代迈进青铜器时代。Bronze is the earliest alloy in the history of metallurgy,dating back to the ancient Babylonian rivers of 6,000 years ago.Its emergence marked the beginning of the human age from the Neolithic