耳菱，双子叶菱科菱属一年生水草，生于湖泊中，在我国主要分布在吉林、黑龙江等地，在俄罗斯等地也有分布。
经过对菲涅耳菱体型相位延迟器件的测试，测量误差小于0.3%。
The retardation of the Fresnel rhomb phase retarder was measured with the measurement error less than 0.3%.
根据全反射相变理论设计了菲涅耳菱体型相位延迟器延迟量对入射角变化不敏感的结构角。
Based on the total-reflection phase transformation theory, the Fresnel rhomb retarder is obtained with a structure Angle with which the phase retardation is insensitive to the Angle of incidence.
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