后二种型号料位计对维修人员年最大接受剂量当量，只有国家剂量限值的1／2～1／3。
The biggest dose equivalent that maintenance workers accepted per year is only equal to 1/2~1/3 of the dose limit value which state stipulated .
后二种型号料位计对维修人员年最大接受剂量当量，只有国家剂量限值的1／2～1／3。
The biggest dose equivalent that maintenance workers accepted per year is only equal to 1/2~1/3 of the dose limit value which state stipulated .
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