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作者重点研究了氚水在孕鼠和胎体内的分布代谢及母体中的氚通过不同转移方式向仔代转移的特点．实验用Ｃ５７ＢＬ纯种小鼠，１次腹腔注入１．８５×１０４Ｂｑ／ｇ体重的氚水。实验结果表明；氚能通过胎盘向胎鼠转移，在氚注入后的第２天母体中所测组织器官中的氚活度占注入量的５１％，到第２０天时为１％～２％．各组织间的氚分布水平相差不大，转移系数为０．９９．母体氚也能通过乳汁向胎鼠转移，表现于氚在母体组织中的活度分布低于氚在仔鼠相同组织中的活度．使氚自母体向仔鼠的转移系数超过１～２．可认为，母体氚通过乳汁向仔鼠的转移比通过胎盘转移的转移系数大，因此其辐射影响更大．
The author focuses on the distribution of tritiated water metabolism in pregnant rats and the carcass and the transfer of tritium from the mother to the offspring by different transfer methods. Experimental C57BL purebred mice were injected intraperitoneally with 1.85 × 104Bq / g body weight of tritiated water. Experimental results show that tritium can be transferred to the fetus through the placenta. Tritium activity in tissues and organs measured in the maternal body accounted for 51% of the injected amount on the second day after tritium injection, and from 1% to 2% on the 20th day. The levels of tritium distribution among different organizations are similar, with a transfer coefficient of 0.99. Maternal tritium can also be transferred to the fetus through milk, as shown by the lower activity distribution of tritium in maternal tissues than the activity of tritium in the same tissues of pups. The transfer coefficient of tritium from offspring to offspring exceeded 1 ~ 2. It can be considered that the transfer of maternal tritium to offshoots through the milk is larger than the transfer coefficient through the placental transfer and thus its radiation impact is greater.