During a nuclear fission chain reaction, the tubes heat up to extremely high temperatures, and the way to keep them safe turns out to also be the way to extract useful energy from them.
The cause of retreatment was related to the unstable refraction in high degree myopia, the individual difference in reaction to laser, unstable energy of the machine and technique of the operator.
再手术原因与高度近视屈光状态不稳定、个体对激光反应的差异性、激光机能量不稳定及术者的操作技术有关。
3
In the reaction system, the activation energy of the proton transfer process is not very high, and it can also happen.