A two-layer hierarchical structure and strategy of optimization and control for polypropylene grade transition is raised to overcome process uncertainties and disturbances that lead to the deviation between the open-loop reference trajectory and the actual process .

针对在过程不确定因素和扰动的影响下，聚丙烯牌号切换 过程实际对象输出与上层离线优化参考轨迹 出现 偏差而影响生产的问题，提出了一种双层递阶结构聚丙烯牌号 切换优化和控制联立策略。

The results show that the single-atom model is in good agreement with experimental data while the transition state theory has large deviation .

结果表明单原子模型与实验数据符合较好，而 过渡态理论则存在较大 偏差。

It was found that β - α transition occurs at low temperature increasing rate which leads to deviation of the results of β content and total crystallinity .

实验发现，在较低的升温速率下存在明显的β-α 转变，使 测得的β晶含量和总结晶度 偏离 真实 值。

As the transition from ancient literature to contemporary literature modern Thai literature was characterized by deviation and borrowing from foreign cultures .

泰国近代文学是古代文学向现代文学 过渡 的 转型 期，这一时期的文学发展以“ 离异”形式出现，表现出文化的外求。