英语语法分析

By the simulation of a theoretical model, the facular intensity distribution curve versus etendue is achieved.

根据理论分析模型，实际模拟了输出光斑的光能分布与光学扩展量的关系曲线。

LED type choosing method is analyzed according to etendue theory. Fiber transmission based on LED illumination system design principle and design key points are summarized.

根据光学扩展量理论分析了LED选型方法，总结了基于LED光纤传输照明系统的设计原则和要点。