The sterilizing time includes thermal death time and heat penetrate time the thermal death time was determined by the characteristics of the microbe the heat penetrate time was related to the heat and mass transfer .

灭菌时间包括 热 死亡 时间和热穿透时间，热死亡时间由微生物本身的特性决定，热穿透时间与该过程中的热量质量传递有关。

The thermal effect of microwave radiation may cause death disability or injury to organisms upon the diversity of radiant intensity time and space and it has attracted more and more concerns due to the catholicity and complexity of the injury .

微波辐射可引起 热效应损伤，因其辐射强度、 时间及空间不同，可使生物体 致死、致残、致伤，由于其损伤的广泛性和复杂性，已越来越引起人们的高度关注。

This minimum process is indicated by the thermal death time versus temperature relationship .

这个过程是以与温度相关的 热 致死 时间为指示。

Their thermal death time were from 1 to 5 hours and the longest dead time ( Ti L50 ) was 3.42 hours in 54 ℃ .

在54℃下的 致死 时间阈值为1～5h，致死时间（TiL50）为 342h；