吸入氡子体有致肺癌的危险是辐射防护界公认健康效应之一。
The risk of lung cancer from inhaled radon decay products is now one of the most firmly established health effect in radiological protection.
吸入氡子体有致肺癌的危险是辐射防护界公认健康效应之一。
The risk of lung cancer from inhaled radon decay products is now one of the most firmly established health effect in radiological protection.
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