Based on geometric theory, diffractive optical element s applied to shape laser beams is designed, the phase expression of the diffractive optical elements is deduced.
以几何理论为基础来设计将激光束整形为正方框形光束的衍射光学元件（DOE），推导出了衍射光学元件表面上的相位表达式；
Conclusion: the early phase expression of NG2 and O4 and the number of oligodendrocyte precursor cells in the brain of epileptic rats increase and relate to the observing time-point.
结论：氯化锂毛果芸香碱致疒间大鼠早期大脑ng2和O4表达增加，少突胶质前体细胞增多，并且和观测时间相关。
Normal expression of synapsin I and normal PSD is one of the reasons for seizure-free at resting phase.
突触素 I 和 PSD 的正常表达是静止期无癫痫发作的原因之一。
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