名词
中文翻译：固有杂质
同义词：
['intrinsic impurity', 'inherentimpurity']
例句：
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1.The water in the bottle is not pure; it has an inherent impurity.
瓶子里的水不纯，有内在的杂质。
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2. The soilwas contaminated with avariety of inherent impurities.
土壤被各种内在的杂质污染了。
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3. The producthad to be tested for any inherent impurities before being released.
该产品在投放市场前必须经过测试，以检查是否存在任何内在的杂质。