名词
中文翻译：磁铁矿底部
同义词：
['magnetite bottom', 'magnetite bedrock例句：1. The mine is located at the base of the mountain.（矿井位于山脚下。）']
例句：
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1. The mine is located at the base of the mountain.
矿井位于山脚下。
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2.The magnesite deposit is believed to be the source of the earth's magnetic field.
磁铁矿石被认为是地球磁场的来源。
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3. The magnesite was extracted from the bottom of the seabed.
磁铁矿石从海底的底部提取出来。