名词
中文翻译：有保证的矿物
同义词：
['certified mineral', 'guaranteed mineral例句：1. The company assures us that the quality of its products is assured.（公司向我们保证，其产品的质量是有保证的。）']
例句：
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1. The company assures us that the quality of its products is assured.
公司向我们保证，其产品的质量是有保证的。
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2.The minerals in this region are assured to be of high quality.
该地区的矿物被保证是高质量的。
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3.The mineral deposits are assured to have a significant impact on the economy.
这些矿藏被保证会对经济产生重大影响。