In order to save the rare Iceland crystal and increase the transmittance of polarizing prism, a polarizing prism made of Iceland crystal and glass was designed.
为了既节省稀有昂贵的冰洲石晶体材料，又尽量提高偏光棱镜的透射比，设计了一种冰洲石晶体与光学玻璃组合的方法。
In order to save the rare Iceland crystal and increase the transmittance of polarizing prism, a polarizing prism made of Iceland crystal and glass was designed.
为了既节省稀有昂贵的冰洲石晶体材料，又尽量提高偏光棱镜的透射比，设计了一种冰洲石晶体与光学玻璃组合的方法。
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