穿过此区的折射因低速而有延迟，又由于透射损失而有衰减。
Refractions which transit the zone will be delayed because of low velocity and attenuated because of transmission loss.
文章介绍了印制光-电路板的测试方法，主要包括光波导的折射率测试、光传输损失测试、表面粗糙度测试、眼图测试、误码率测试、环境测试。
In the paper, the method of test about OE-PCB was reviewed. Including mainly Refractive Index, Optical Propagation Loss, Surface Roughness, Eye Pattern, Bite Error Rate test and Environment Impact.
文章介绍了印制光-电路板的测试方法，主要包括光波导的折射率测试、光传输损失测试、表面粗糙度测试、眼图测试、误码率测试、环境测试。
In the paper, the method of test about OE-PCB was reviewed. Including mainly Refractive Index, Optical Propagation Loss, Surface Roughness, Eye Pattern, Bite Error Rate test and Environment Impact.
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