It is not very appropriate and convenient that the same low energy limit values are used in calculation of exposure rate constants.
在照射量率常数计算中，取同一能量下限值并不十分合理与方便。
To study the biological limit values for occupational exposure to styrene.
研究职业接触苯乙烯的生物限值。
To study the biological limit values for occupational exposure to styrene.
研究职业接触苯乙烯的生物限值。
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