名词
中文翻译：Unknown
同义词：
['average dose', 'effective dose', 'median dose']
例句：
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1. The study found that the mean dose of radiation was too high for humans to safely receive it.
研究发现，辐射的平均剂量对人类来说是安全的。
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2. The doctor prescribed a mean dose of medication for her condition.
医生为她的状况开了一种平均剂量的药物。
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3. The researchers calculated the mean dose of pollutants in the air.
研究人员计算了空气中污染物的平均剂量。