Results changes in the properties of excitable tissue to electric tissue to electric stimulate in rats ' gastrocnemius after mechanic asphyxia seems to be well correlated with the early postmortem interval and appeared a linear relation in certain period 结果大鼠机械性窒息死亡后一定时间内,其腓肠肌对电刺激的兴奋性与死亡时间呈明显线性关系。