"I thought lucid dreams were completely random and that I had to wait for another to happen, but now I am amazed to find out that I can train myself to become a lucid dreamer," she said.
Based on the theory of energy random analysis for train derailment, train running safety on Hujiawan bridge was calculated.
运用列车脱轨能量随机分析理论，计算了胡家湾大桥上列车走行安全性。
3
Based on theory of random energy analysis of train derailment, a new method was put forward to establish the limit value of bridge lateral rigidity with which derailment on Bridges can be prevented.