“field flattener”的概念、定义、翻译、参考文献-科学参考

单词	field flattener
释义	field flattener [`fēld ´flat·ǝn·ǝr] ^OPTICS A thin planoconvex lens placed in front of the photographic plate in some telescopes that have a curved focal plane so as to focus light on the flat plate.
随便看	danger sounding danger space dangler dangling bond dangling ELSE Danian Daniell cell Daniell hygrometer Danjon prismatic astrolabe dannemorite contact grasp contact inhibition contact-initiated discharge machining contact inspection contact lens contact log contact-making meter contact-mask read-only memory contact material contact metamorphic rock contact metamorphism contact metasomatism contact microphone contact mine contact mineral

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