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来源:雅诚德英语网
The Upper Pleistocene in northern Hebei is divisible into the Qian an Formation and the Malan Formation.
冀北晚更新世地层划分为迁安组与马兰组。
The Upper Pleistocene in northern Hebei is divisible into the Qian an Formation and the Malan Formation.
冀北晚更新世地层划分为迁安组与马兰组。