名词
中文翻译：强韧的矿石
同义词：
['strong rock', 'hard rock']
例句：
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1.The metastrengite from the mine is incredibly valuable.
矿里的强韧矿石极其宝贵。
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2.The geologists are studying the metastrengite to determine its origin.
地质学家正在研究这种强韧矿石以确定其来源。
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3. The mining company has been extracting metastrengite for centuries.
这个矿业公司已经开采了这种强韧矿石几个世纪了。