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1. The studyfound that the external exposure dose of radiationwas too high.
研究发现，辐射的外部暴露剂量过高。
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2. The researchers analyzed the data todetermine the external exposure dose for the patients.
研究人员分析了数据，以确定患者的外部暴露剂量。
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3. The government has implemented strict regulations toreduce the external exposure dose of radiation.
政府已经实施了严格的规定，以减少辐射的外部暴露剂量。