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单词 pentaprism
释义 pen·ta·prism
\ˈpentə+ˌ-\ noun
Etymology: penta- + prism
: a pentagonal prism having one angle 90° and the others 112° 30′, producing a constant deviation of 90° for any wavelength, and used as a reflector in range finders
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更新时间:2024/9/20 0:30:42