The rate of UDMH vapour detained in respiratory tract(Rd)was more than 95%,which was not influenced by the alteration and fluctuation of the concentration of UDMH vapour(C1)and ventilative volume of rabbits (Vr).

• UDMH蒸气经家兔呼吸道的滞留率高达95%25以上，不受吸入气UDMH蒸气浓度C1和动物通气量Vr改变和波动的影响。