1. They decided to retreat lest they would be between two fires.
他们决定撤退，否则就要受两面夹击。
2. With modified slightly, the Global Flame Radiation Model presented recently by de Ris and Orloff was also used to predict the flame radiation from under-ventilated polymer fires. The comparison between the predictions from the two models and experimental data has been found to be satisfactory.
进而，在改进的基础上，以deRis和Orloff新近提出的综合火焰辐射模型进行了对比计算，并进一步与有关实验数据进行了对比，结果是满意的。